Develop Reference

Android Studio Can't Fetch Library

I have recently started getting this issue with Android Studio and it has been driving me up the wall. I keep getting the error "Failed to resolve: com.squareup.okio:okio:1.8.0". These are the dependencies I have:
dependencies {
compile 'com.google.code.gson:gson:2.6.2'
compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile 'com.squareup.retrofit2:converter-gson:2.1.0'
compile files('libs/okio-1.8.0.jar')
compile files('libs/retrofit-2.1.0 (1).jar')
}
As you can see, I have the retrofit and gson libraries simply compile (I'm assuming this downloads them from the internet), I tried doing the same with Okio however it didn't resolve, so I have speicifcally downloaded the 1.8.0 Okio JAR however it still fails to resolve. Why could this be? Any answer would be greatly appreciated. Thank you

Don't put dependencies as a Gradle dependency:
compile 'com.squareup.retrofit2:retrofit:2.1.0'
And as a .jar file in src/libs:
compile files('libs/retrofit-2.1.0 (1).jar')
at one time. Choose only one method. I advise you to choose Gradle dependencies, because they are automatically fetched.
In you case, the dependencies section should look like:
dependencies {
compile `com.google.code.gson:gson:2.7`
compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile 'com.squareup.retrofit2:converter-gson:2.1.0'
}

Android Studio Weird Warning

After I updated my Support library from 23.1.1 to 23.4.0 I get this warning cannot access android.support.v4.app.baseFragmentActivityEclair on every call to super and every instance of AppCompatActivity
And if I updated my support library to 24.1.1 The warning changes to cannot access android.support.v4.app.baseFragmentActivityJB.
Can anyone tell me why this warning is shown and how can I remove this warning:
here is my dependencies before:
(no error in this)
compile 'com.android.support:palette-v7:23.1.1'
compile 'com.android.support:gridlayout-v7:23.1.1'
compile 'com.android.support:support-v4:23.1.1'
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:design:23.1.1'
compile 'com.android.support:cardview-v7:23.1.1'
here is my dependencies after cannot access android.support.v4.app.baseFragmentActivityEclairwarning:
compile 'com.android.support:palette-v7:23.4.0'
compile 'com.android.support:gridlayout-v7:23.4.0'
compile 'com.android.support:support-v4:23.4.0'
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.android.support:cardview-v7:23.4.0'
here is my dependencies after cannot access android.support.v4.app.baseFragmentActivityJBwarning:
compile 'com.android.support:palette-v7:24.1.1'
compile 'com.android.support:gridlayout-v7:24.1.1'
compile 'com.android.support:support-v4:24.1.1'
compile 'com.android.support:appcompat-v7:24.1.1'
compile 'com.android.support:design:24.1.1'
compile 'com.android.support:cardview-v7:24.1.1'

We ran into a similar problem when one of the packages in our project had dependencies on version 24.0 support libraries and another package was dependent on version 23.4.0. This seems to be a problem for the Android Studio (IntelliJ) IDE, not the compiler, because we were able to build and run the project without any problems. We resolved the warning by reverting the 24.0 dependency to 23.4.0. I suspect that going the other direction (advancing all of our package dependencies to 24.0) would also have eliminated the warning but we didn't experiment with that due to the number of packages in our project.

If you're looking to hack around this, many of the support libraries have an internal library called libs/internal_impl-$VERSION.jar that includes these types of version-specific implementations. To get your IDE to work, you can extract these JARs and manually include them in your IDE's build path.
For example, you can extract the classes referenced here, assuming version 24.2.1, using this command:
unzip support-fragment-24.2.1.aar libs/internal_impl-24.2.1.jar

I have trouble configure android studio header file

I have the driver install, but i do not see what the problem is.

Problem is in your gradle file
make sure you added this dependencies
compile 'com.google.android.gms:play-services-gcm:8.1.0'
compile 'com.google.android.gms:play-services-location:8.1.0'
compile 'com.google.android.gms:play-services-maps:8.1.0'

Failed to Find "it.neokree:MaterialTabs:0.11" android studio dependencies error

I applied following library dependencies,In my android studio take only com.android.support:appcompat-v7:21.0.+ like that and all google dependencies.If i apply private library dependencies like following
Failed to find:it.neokree:MaterialTabs:0.11![Failed to find library dependencies in build.gradle android studio][1]
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.+'
compile 'com.android.support:recyclerview-v7:21.0.+'
compile 'org.lucasr.dspec:dspec:0.1.1'
compile 'it.neokree:MaterialTabs:0.11'
compile 'com.mcxiaoke.volley:library:1.0.+'
compile 'com.telly:mrvector:0.2.0'
compile 'com.oguzdev:CircularFloatingActionMenu:1.0.2'
compile 'me.tatarka.support:jobscheduler:0.1.1'
compile 'jp.wasabeef:recyclerview-animators:1.1.0'
compile 'com.nineoldandroids:library:2.4.0'
compile 'com.daimajia.easing:library:1.0.1#aar'
compile 'com.daimajia.androidanimations:library:1.1.3#aar'
compile 'com.pkmmte.view:circularimageview:1.1'
compile 'com.android.support:gridlayout-v7:22.0.0'
}
Failed to find library dependencies in build.gradle android studio.
I researched so many times and tried so many ways.but i can't find solutions.i don't know this is a studio gradle problems or my company blocked some firewalls certificate for security.I want to solutions urgent.please somebody solve this problem and help for me.currently i have used jar files only.If i used jar files through libs folder then what is diffrent between eclipse and android studio/

Try sync gradle again and check if you can link to this page:
https://jcenter.bintray.com/it/neokree/MaterialTabs/maven-metadata.xml
If you can't, if might be the firewall problem.
And some dependencies might out of date.
I help you to sync the latest version using andle
com.android.support:appcompat-v7: 21.0.+ -> 23.1.0
com.android.support:recyclerview-v7: 21.0.+ -> 23.1.0
com.mcxiaoke.volley:library: 1.0.+ -> 1.0.19
jp.wasabeef:recyclerview-animators: 1.1.0 -> 2.0.1
com.daimajia.easing:library: 1.0.1 -> 1.0.2
com.android.support:gridlayout-v7: 22.0.0 -> 23.1.0

Android Studio: Could not find any version that matches com.google.gms:play-services:6.1.+

I've recently updated my android studio and when I try to sync my gradle file I get the below error:
Could not find any version that matches com.google.gms:play-services:6.1.+
I understand that Android Studio ships with it's own sdk so I've installed the ADT sdk and pointed my project to this but I still get the same error, here are my gradle dependencies:
dependencies {
compile 'com.android.support:appcompat-v7:20.+'
compile 'com.path:android-priority-jobqueue:1.1.2'
compile files('libs/Parse-1.4.2.jar')
compile project(':ws_wrapper')
compile project(':custom_slider_library')
compile 'com.crashlytics.android:crashlytics:1.+'
compile 'com.google.android.gms:play-services:6.1.+'
compile project(':shinobicharts-android-library')
compile files('libs/shinobicharts-android-trial-1.3.5.jar')
compile files('libs/androidplot-core-0.6.1-SNAPSHOT.jar')
compile files('libs/activation.jar')
compile files('libs/additionnal.jar')
compile files('libs/mail.jar')
compile files('libs/universal-image-loader-1.9.2.jar')
compile files('libs/twitter4j-core-4.0.1.jar')
}
I'm unsure as to what to do next, my sdk manager is up to date, does anyone have any ideas? I can't run this at the moment due to this issue.
If I try to add a dependency via the project structure the google play services isn't available on the maven drop down list.
Just to add this line #integer/google_play_services_version in the manifest is also causing an issue it says cannot resolve symbol

Your SDK isn't actually up-to-date. You need to install revision 12 of the Google Repository; that's the one that ships Google Play Services 6.1.11.