Develop Reference

why does the app crash in device but runs in emulator?

I uninstalled and installed the app on my device and it started to crash.
Here is the logcat
E/Xposed: java.lang.NoSuchMethodError: com.android.internal.telephony.PhoneSubInfo#getDeviceId()#exact
at de.robv.android.xposed.XposedHelpers.findMethodExact(XposedHelpers.java:341)
at de.robv.android.xposed.XposedHelpers.findAndHookMethod(XposedHelpers.java:182)
at de.robv.android.xposed.XposedHelpers.findAndHookMethod(XposedHelpers.java:257)
at com.vivek.imeichangerpro.XposedIMEIChanger.handleLoadPackage(XposedIMEIChanger.java:108)
at de.robv.android.xposed.IXposedHookLoadPackage$Wrapper.handleLoadPackage(IXposedHookLoadPackage.java:34)
at de.robv.android.xposed.callbacks.XC_LoadPackage.call(XC_LoadPackage.java:61)
at de.robv.android.xposed.callbacks.XCallback.callAll(XCallback.java:106)
at de.robv.android.xposed.XposedInit$2.beforeHookedMethod(XposedInit.java:116)
at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:314)
at android.app.ActivityThread.handleBindApplication(<Xposed>)
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1408)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5458)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:102)
03-24 15:15:29.833 19472-19472/? E/Xposed: java.lang.NoSuchMethodError: com.android.internal.telephony.PhoneSubInfo#getDeviceId()#exact
at de.robv.android.xposed.XposedHelpers.findMethodExact(XposedHelpers.java:330)
at de.robv.android.xposed.XposedHelpers.findAndHookMethod(XposedHelpers.java:182)
at de.robv.android.xposed.XposedHelpers.findAndHookMethod(XposedHelpers.java:257)
at com.magic.imeichanger.XposedIMEIChanger.handleLoadPackage(XposedIMEIChanger.java:38)
at de.robv.android.xposed.IXposedHookLoadPackage$Wrapper.handleLoadPackage(IXposedHookLoadPackage.java:34)
at de.robv.android.xposed.callbacks.XC_LoadPackage.call(XC_LoadPackage.java:61)
at de.robv.android.xposed.callbacks.XCallback.callAll(XCallback.java:106)
at de.robv.android.xposed.XposedInit$2.beforeHookedMethod(XposedInit.java:116)
at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:314)
at android.app.ActivityThread.handleBindApplication()
at android.app.ActivityThread.-wrap1(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1408)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5458)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:102)
03-24 15:15:29.877 19472-19472/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.seven.pprs.bloodlink, PID: 19472
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.seven.pprs.bloodlink/com.seven.pprs.bloodlink.LaunchActivity}: java.lang.ClassNotFoundException: Didn't find class "com.seven.pprs.bloodlink.LaunchActivity" on path: DexPathList[[zip file "/data/app/com.seven.pprs.bloodlink-2/base.apk"],nativeLibraryDirectories=[/data/app/com.seven.pprs.bloodlink-2/lib/arm, /vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2345)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2504)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1347)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5458)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:102)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.seven.pprs.bloodlink.LaunchActivity" on path: DexPathList[[zip file "/data/app/com.seven.pprs.bloodlink-2/base.apk"],nativeLibraryDirectories=[/data/app/com.seven.pprs.bloodlink-2/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2335)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2504) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1347) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5458) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:102) 
Suppressed: java.lang.ClassNotFoundException: Didn't find class "com.seven.pprs.bloodlink.LaunchActivity" on path: DexPathList[[dex file "/data/dalvik-cache/xposed_XResourcesSuperClass.dex"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 13 more
Suppressed: java.lang.ClassNotFoundException: com.seven.pprs.bloodlink.LaunchActivity
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 14 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

Android (java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/common/internal/zzx;

I am trying to find where the error is.
I would be delighted if you help me for this, at least to know where to start from debugging.
*FATAL EXCEPTION: main
Process: es.mrjeff.app.android.jeff, PID: 1943
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/common/internal/zzx;
at com.google.android.gms.measurement.internal.zzt.zzaU(Unknown Source)
at com.google.android.gms.measurement.AppMeasurementContentProvider.onCreate(Unknown Source)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1686)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1655)
at android.app.ActivityThread.installProvider(ActivityThread.java:4964)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4559)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4499)
at android.app.ActivityThread.access$1500(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1339)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.internal.zzx" on path: DexPathList[[dex file "/data/data/es.mrjeff.app.android.jeff/files/instant-run/dex/slice-support-annotations-22.2.1_c88a2eaa5245cd30e618969f1b8d0f07b45957fc-classes.dex", dex file "/data/data/es.mrjeff.app.android.jeff/files/instant-run/dex/slice-slice_9-classes.dex", dex file "/data/data/es.mrjeff.app.android.jeff/files/instant-run/dex/slice-slice_3-classes.dex", dex file "/data/data/es.mrjeff.app.android.jeff/files/instant-run/dex/slice-slice_2-classes.dex", dex file "/data/data/es.mrjeff.app.android.jeff/files/instant-run/dex/slice-com.google.android.gms-play-services-measurement-8.3.0_ef550eb40b5fb4f7a179f5cad46917a075c16186-classes.dex", dex file "/data/data/es.mrjeff.app.android.jeff/files/instant-run/dex/slice-com.facebook.android-facebook-android-sdk-4.6.0_4be70ad9b89901240fcc3a8cfa19306d134fc2e0-classes.dex"],nativeLibraryDirectories=[/data/app/es.mrjeff.app.android.jeff-2/lib/x86, /vendor/lib, /system/lib, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at com.android.tools.fd.runtime.IncrementalClassLoader$DelegateClassLoader.findClass(IncrementalClassLoader.java:90)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at com.google.android.gms.measurement.internal.zzt.zzaU(Unknown Source) 
at com.google.android.gms.measurement.AppMeasurementContentProvider.onCreate(Unknown Source) 
at android.content.ContentProvider.attachInfo(ContentProvider.java:1686) 
at android.content.ContentProvider.attachInfo(ContentProvider.java:1655) 
at android.app.ActivityThread.installProvider(ActivityThread.java:4964) 
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4559) 
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4499) 
at android.app.ActivityThread.access$1500(ActivityThread.java:144) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1339) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5221) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 
Suppressed: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.internal.zzx" on path: DexPathList[[zip file "/data/app/es.mrjeff.app.android.jeff-2/base.apk"],nativeLibraryDirectories=[/data/app/es.mrjeff.app.android.jeff-2/lib/x86, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 17 more*

Xamarin Android Support v7 Cardview Sample Fails

When I run the Xamarin Android Support v7 Cardview SAMPLE project, I get the following error: "Error inflating class android.support.v7.widget.CardView". How can I get this to work? Find below the stack trace.
Android.Views.InflateException: Binary XML file line #1: Error inflating class android.support.v7.widget.CardView ---> Java.Lang.Reflect.InvocationTargetException: ---> Java.Lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/cardview/R$styleable; ---> Java.Lang.ClassNotFoundException: Didn't find class "android.support.v7.cardview.R$styleable" on path: DexPathList[[zip file "/data/app/com.xamarin.supportv7cardview.sample-1/base.apk"],nativeLibraryDirectories=[/data/app/com.xamarin.supportv7cardview.sample-1/lib/arm, /vendor/lib, /system/lib]]
at --- End of managed exception stack trace ---
at java.lang.ClassNotFoundException: Didn't find class "android.support.v7.cardview.R$styleable" on path: DexPathList[[zip file "/data/app/com.xamarin.supportv7cardview.sample-1/base.apk"],nativeLibraryDirectories=[/data/app/com.xamarin.supportv7cardview.sample-1/lib/arm, /vendor/lib, /system/lib]]
at at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at at android.support.v7.widget.CardView.initialize(CardView.java:203)
at at android.support.v7.widget.CardView.<init>(CardView.java:101)
at at java.lang.reflect.Constructor.newInstance(Native Method)
at at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at at android.view.LayoutInflater.createView(LayoutInflater.java:607)
at at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
at at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377)
at at android.app.Activity.setContentView(Activity.java:2153)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.n_onCreate(Native Method)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.onCreate(MainActivity.java:28)
at at android.app.Activity.performCreate(Activity.java:5976)
at at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at at android.app.ActivityThread.access$800(ActivityThread.java:144)
at at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at at android.os.Handler.dispatchMessage(Handler.java:102)
at at android.os.Looper.loop(Looper.java:135)
at at android.app.ActivityThread.main(ActivityThread.java:5221)
at at java.lang.reflect.Method.invoke(Native Method)
at at java.lang.reflect.Method.invoke(Method.java:372)
at at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
at Suppressed: java.lang.ClassNotFoundException: android.support.v7.cardview.R$styleable
at at java.lang.Class.classForName(Native Method)
at at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
at ... 28 more
at Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
--- End of inner exception stack trace ---
at --- End of managed exception stack trace ---
at java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/cardview/R$styleable;
at at android.support.v7.widget.CardView.initialize(CardView.java:203)
at at android.support.v7.widget.CardView.<init>(CardView.java:101)
at at java.lang.reflect.Constructor.newInstance(Native Method)
at at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at at android.view.LayoutInflater.createView(LayoutInflater.java:607)
at at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
at at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377)
at at android.app.Activity.setContentView(Activity.java:2153)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.n_onCreate(Native Method)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.onCreate(MainActivity.java:28)
at at android.app.Activity.performCreate(Activity.java:5976)
at at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at at android.app.ActivityThread.access$800(ActivityThread.java:144)
at at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at at android.os.Handler.dispatchMessage(Handler.java:102)
at at android.os.Looper.loop(Looper.java:135)
at at android.app.ActivityThread.main(ActivityThread.java:5221)
at at java.lang.reflect.Method.invoke(Native Method)
at at java.lang.reflect.Method.invoke(Method.java:372)
at at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
at Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.cardview.R$styleable" on path: DexPathList[[zip file "/data/app/com.xamarin.supportv7cardview.sample-1/base.apk"],nativeLibraryDirectories=[/data/app/com.xamarin.supportv7cardview.sample-1/lib/arm, /vendor/lib, /system/lib]]
at at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at ... 27 more
at Suppressed: java.lang.ClassNotFoundException: android.support.v7.cardview.R$styleable
at at java.lang.Class.classForName(Native Method)
at at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
at ... 28 more
at Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
--- End of inner exception stack trace ---
at --- End of managed exception stack trace ---
at java.lang.reflect.InvocationTargetException
at at java.lang.reflect.Constructor.newInstance(Native Method)
at at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at at android.view.LayoutInflater.createView(LayoutInflater.java:607)
at at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
at at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377)
at at android.app.Activity.setContentView(Activity.java:2153)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.n_onCreate(Native Method)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.onCreate(MainActivity.java:28)
at at android.app.Activity.performCreate(Activity.java:5976)
at at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at at android.app.ActivityThread.access$800(ActivityThread.java:144)
at at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at at android.os.Handler.dispatchMessage(Handler.java:102)
at at android.os.Looper.loop(Looper.java:135)
at at android.app.ActivityThread.main(ActivityThread.java:5221)
at at java.lang.reflect.Method.invoke(Native Method)
at at java.lang.reflect.Method.invoke(Method.java:372)
at at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
at Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/cardview/R$styleable;
at at android.support.v7.widget.CardView.initialize(CardView.java:203)
at at android.support.v7.widget.CardView.<init>(CardView.java:101)
at ... 25 more
at Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.cardview.R$styleable" on path: DexPathList[[zip file "/data/app/com.xamarin.supportv7cardview.sample-1/base.apk"],nativeLibraryDirectories=[/data/app/com.xamarin.supportv7cardview.sample-1/lib/arm, /vendor/lib, /system/lib]]
at at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at ... 27 more
at Suppressed: java.lang.ClassNotFoundException: android.support.v7.cardview.R$styleable
at at java.lang.Class.classForName(Native Method)
at at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
at ... 28 more
at Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
--- End of inner exception stack trace ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/3236/ee215fc9/source/mono/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143
at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (IntPtr jobject, IntPtr jclass, IntPtr jmethod, Android.Runtime.JValue* parms) [0x00084] in /Users/builder/data/lanes/3236/ee215fc9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:1029
at Android.App.Activity.SetContentView (Int32 layoutResID) [0x00070] in /Users/builder/data/lanes/3236/ee215fc9/source/monodroid/src/Mono.Android/platforms/android-15/src/generated/Android.App.Activity.cs:4403
at AndroidSupportSample.MainActivity.OnCreate (Android.OS.Bundle bundle) [0x0000e] in /Users/Dennis/projects/cobalt-git/Rideshare-01/Components/xamandroidsupportv7cardview-23.1.1.1/samples/AndroidSupportSample/AndroidSupportSample/MainActivity.cs:27
at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (IntPtr jnienv, IntPtr native__this, IntPtr native_savedInstanceState) [0x00011] in /Users/builder/data/lanes/3236/ee215fc9/source/monodroid/src/Mono.Android/platforms/android-15/src/generated/Android.App.Activity.cs:2212
at at (wrapper dynamic-method) System.Object:855888e7-3749-47dd-bc4c-c0cf15ffd7a6 (intptr,intptr,intptr)
at --- End of managed exception stack trace ---
at android.view.InflateException: Binary XML file line #1: Error inflating class android.support.v7.widget.CardView
at at android.view.LayoutInflater.createView(LayoutInflater.java:633)
at at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
at at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377)
at at android.app.Activity.setContentView(Activity.java:2153)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.n_onCreate(Native Method)
at at md5b5c4d68d7f0084075bca6dac9c5e1a71.MainActivity.onCreate(MainActivity.java:28)
at at android.app.Activity.performCreate(Activity.java:5976)
at at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at at android.app.ActivityThread.access$800(ActivityThread.java:144)
at at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at at android.os.Handler.dispatchMessage(Handler.java:102)
at at android.os.Looper.loop(Looper.java:135)
at at android.app.ActivityThread.main(ActivityThread.java:5221)
at at java.lang.reflect.Method.invoke(Native Method)
at at java.lang.reflect.Method.invoke(Method.java:372)
at at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
at Caused by: java.lang.reflect.InvocationTargetException
at at java.lang.reflect.Constructor.newInstance(Native Method)
at at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at at android.view.LayoutInflater.createView(LayoutInflater.java:607)
at ... 22 more
at Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/cardview/R$styleable;
at at android.support.v7.widget.CardView.initialize(CardView.java:203)
at at android.support.v7.widget.CardView.<init>(CardView.java:101)
at ... 25 more
at Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.cardview.R$styleable" on path: DexPathList[[zip file "/data/app/com.xamarin.supportv7cardview.sample-1/base.apk"],nativeLibraryDirectories=[/data/app/com.xamarin.supportv7cardview.sample-1/lib/arm, /vendor/lib, /system/lib]]
at at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at ... 27 more
at Suppressed: java.lang.ClassNotFoundException: android.support.v7.cardview.R$styleable
at at java.lang.Class.classForName(Native Method)
at at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
at ... 28 more
at Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

If you find any issues in added library project fix those things
In eclipse do Project > Clean on the library project and the Android project will solve the problem

Gradle plugin 2.1.0: app crashes on launch

When I run the app the application crash.
I'm using the new android plugin 2.1.0
Failed to create directory /data/data/ric.es.pruebavideo/files/instant-run/dex
05-05
Couldn't create dex code folder
05-05 22:13:05.024 28257-28257/ric.es.pruebavideo D/AndroidRuntime: Shutting down VM
05-05 22:13:05.026 28257-28257/ric.es.pruebavideo E/AndroidRuntime: FATAL EXCEPTION: main
Process: ric.es.pruebavideo, PID: 28257
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{ric.es.pruebavideo/ric.es.pruebavideo.VideoRActivity}: java.lang.ClassNotFoundException: Didn't find class "ric.es.pruebavideo.VideoRActivity" on path: DexPathList[[zip file "/data/app/ric.es.pruebavideo-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2236)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassNotFoundException: Didn't find class "ric.es.pruebavideo.VideoRActivity" on path: DexPathList[[zip file "/data/app/ric.es.pruebavideo-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1066)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2226)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) 
at android.app.ActivityThread.access$800(ActivityThread.java:151) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5254) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) 
Suppressed: java.lang.ClassNotFoundException: ric.es.pruebavideo.VideoRActivity
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
05-05 22:18:21.137 29791-29791/ric.es.pruebavideo D/Mobility: Selected camera resolution: 1280 x 720
05-05 22:18:21.210 29791-29791/ric.es.pruebavideo I/Choreographer: Skipped 30 frames! The application may be doing too much work on its main thread.

Downgrading grudle to 2.0.0 worked for me

Error when trying to run project from Android Studio on my Nexus 6

I have my Nexus 6 connected via ADB and the Google USB driver is functional (I can run adb commands from command line) but when I try to compile my simple package on the device, it spits out this error:
`
02-02 13:38:26.091 12659-12659/com.jeremy.myfirstproject E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.jeremy.myfirstproject, PID: 12659
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.jeremy.myfirstproject/com.jeremy.myfirstproject.MyActivity}: java.lang.ClassNotFoundException: Didn't find class "com.jeremy.myfirstproject.MyActivity" on path: DexPathList[[zip file "/data/app/com.jeremy.myfirstproject-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2224)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2375)
at android.app.ActivityThread.access$900(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1293)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5238)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.jeremy.myfirstproject.MyActivity" on path: DexPathList[[zip file "/data/app/com.jeremy.myfirstproject-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1065)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2214)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2375)
            at android.app.ActivityThread.access$900(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1293)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5238)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Suppressed: java.lang.NoClassDefFoundError: com.jeremy.myfirstproject.MyActivity
at dalvik.system.DexFile.defineClassNative(Native Method)
at dalvik.system.DexFile.defineClass(DexFile.java:226)
at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
at dalvik.system.DexPathList.findClass(DexPathList.java:321)
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
... 14 more
Suppressed: java.lang.ClassNotFoundException: com.jeremy.myfirstproject.MyActivity
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
`
Sorry about the wall of text. I'm not sure what the problem is here, maybe someone can sort it out here?

Create a new project in Android studio and copy everything from the old project into the new one.