Develop Reference

running react-native in android emulator

I'm trying to run the init react-native project, and for some reason I get a 500 error.
here is the console log
Danny#DESKTOP-GIRS9GM /cygdrive/c/Users/Danny/Desktop/TestProject
$ react-native run-android
Scanning 557 folders for symlinks in C:\Users\Danny\Desktop\TestProject\node_modules (29ms)
JS server already running.
Building and installing the app on the device (cd android && gradlew.bat installDebug)...
Incremental java compilation is an incubating feature.
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAppcompatV72301Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42301Library UP-TO-DATE
:app:prepareComFacebookFbuiTextlayoutbuilderTextlayoutbuilder100Library UP-TO-DATE
:app:prepareComFacebookFrescoDrawee101Library UP-TO-DATE
:app:prepareComFacebookFrescoFbcore101Library UP-TO-DATE
:app:prepareComFacebookFrescoFresco101Library UP-TO-DATE
:app:prepareComFacebookFrescoImagepipeline101Library UP-TO-DATE
:app:prepareComFacebookFrescoImagepipelineBase101Library UP-TO-DATE
:app:prepareComFacebookFrescoImagepipelineOkhttp3101Library UP-TO-DATE
:app:prepareComFacebookReactReactNative0471Library UP-TO-DATE
:app:prepareComFacebookSoloaderSoloader010Library UP-TO-DATE
:app:prepareOrgWebkitAndroidJscR174650Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:mergeDebugShaders UP-TO-DATE
:app:compileDebugShaders UP-TO-DATE
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources UP-TO-DATE
:app:bundleDebugJsAndAssets SKIPPED
:app:processDebugManifest UP-TO-DATE
:app:processDebugResources UP-TO-DATE
:app:generateDebugSources UP-TO-DATE
:app:incrementalDebugJavaCompilationSafeguard UP-TO-DATE
:app:compileDebugJavaWithJavac UP-TO-DATE
:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources UP-TO-DATE
:app:transformClassesWithDexForDebug UP-TO-DATE
:app:mergeDebugJniLibFolders UP-TO-DATE
:app:transformNative_libsWithMergeJniLibsForDebug UP-TO-DATE
:app:processDebugJavaRes UP-TO-DATE
:app:transformResourcesWithMergeJavaResForDebug UP-TO-DATE
:app:validateSigningDebug
:app:packageDebug UP-TO-DATE
:app:assembleDebug UP-TO-DATE
:app:installDebug
Installing APK 'app-debug.apk' on 'Nexus_5X_API_26(AVD) - 8.0.0' for app:debug
Installed on 1 device.
BUILD SUCCESSFUL
Total time: 15.967 secs
Running C:\Users\Danny\AppData\Local\Android\sdk/platform-tools/adb -s emulator-5554 reverse tcp:8081 tcp:8081
Starting the app on emulator-5554 (C:\Users\Danny\AppData\Local\Android\sdk/platform-tools/adb -s emulator-5554 shell am start -n com.testproject/com.testproject.MainActivity)...
but on the device I'm getting this error(on a red screen),
The development server returned response error code: 500
URL: http://10.0.2.2:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false
Body:
{"message":"TransformError: C:\\Users\\Danny\\Desktop\\TestProject\\index.android.js: Unexpected token ) (While processing preset: \"C:\\\\Users\\\\Danny\\\\Desktop\\\\TestProject\\\\node_modules\\\\babel-preset-react-native\\\\index.js\")","type":"TransformError","lineNumber":0,"description":"","errors":[{"description":"","lineNumber":0}]}
processBundleResult
BundleDownloader.java:170
access$100
BundleDownloader.java:39
onResponse
BundleDownloader.java:139
execute
RealCall.java:135
run
NamedRunnable.java:32
runWorker
ThreadPoolExecutor.java:1162
run
ThreadPoolExecutor.java:636
run
Thread.java:764
and this is the message from the window that gets open (when i run react-native run-android)
error: bundling failed: "TransformError: C:\\Users\\Danny\\Desktop\\TestProject\\index.android.js: Unexpected token ) (While processing preset: \"C:\\\\Users\\\\Danny\\\\Desktop\\\\TestProject\\\\node_modules\\\\babel-preset-react-native\\\\index.js\")"
I dont get it, how come the init project of react-native comes with errors ? or I'm doing something wrong ? im not sure anymore, thanks!

I think you are using a new version of babel-preset-react-native library and there is an unsupported trailing commas on that new version.
You can install the previous version of the library:
npm uninstall babel-preset-react-native
npm install babel-preset-react-native#2.1.0
Edit - you can see the problem on playframework repository: issue#15513

Android Studio : Unable to locate apk

I am trying to create an unsigned apk that I can share internally for testing. On Android Studio, I did the following :
Click Build -> Clean Project
Build -> Make Project
The build was successful with the following message :
Configuration on demand is an incubating feature. :app:preBuild
UP-TO-DATE :app:preDebugBuild UP-TO-DATE :app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE :volley:compileLint
:volley:copyReleaseLint UP-TO-DATE :volley:mergeReleaseProguardFiles
UP-TO-DATE :volley:preBuild UP-TO-DATE :volley:preReleaseBuild
UP-TO-DATE :volley:checkReleaseManifest
:volley:prepareReleaseDependencies :volley:compileReleaseAidl
UP-TO-DATE :volley:compileReleaseRenderscript UP-TO-DATE
:volley:generateReleaseBuildConfig UP-TO-DATE
:volley:generateReleaseAssets UP-TO-DATE :volley:mergeReleaseAssets
UP-TO-DATE :volley:generateReleaseResValues UP-TO-DATE
:volley:generateReleaseResources UP-TO-DATE
:volley:packageReleaseResources UP-TO-DATE
:volley:processReleaseManifest UP-TO-DATE
:volley:processReleaseResources UP-TO-DATE
:volley:generateReleaseSources UP-TO-DATE
:volley:processReleaseJavaRes UP-TO-DATE
:volley:compileReleaseJavaWithJavac UP-TO-DATE
:volley:packageReleaseJar UP-TO-DATE :volley:compileReleaseNdk
UP-TO-DATE :volley:packageReleaseJniLibs UP-TO-DATE
:volley:packageReleaseLocalJar UP-TO-DATE
:volley:packageReleaseRenderscript UP-TO-DATE :volley:bundleRelease
UP-TO-DATE :app:prepareBluetoothGattVolleyUnspecifiedLibrary
UP-TO-DATE :app:prepareComAndroidSupportAppcompatV72301Library
UP-TO-DATE :app:prepareComAndroidSupportDesign2301Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42301Library UP-TO-DATE
:app:prepareDebugDependencies :app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE :app:generateDebugBuildConfig
UP-TO-DATE :app:generateDebugAssets UP-TO-DATE :app:mergeDebugAssets
UP-TO-DATE :app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE :app:mergeDebugResources
UP-TO-DATE :app:processDebugManifest UP-TO-DATE
:app:processDebugResources UP-TO-DATE :app:generateDebugSources
UP-TO-DATE :app:preDebugAndroidTestBuild UP-TO-DATE
:app:prepareDebugAndroidTestDependencies
:app:compileDebugAndroidTestAidl UP-TO-DATE
:app:processDebugAndroidTestManifest UP-TO-DATE
:app:compileDebugAndroidTestRenderscript UP-TO-DATE
:app:generateDebugAndroidTestBuildConfig UP-TO-DATE
:app:generateDebugAndroidTestAssets UP-TO-DATE
:app:mergeDebugAndroidTestAssets UP-TO-DATE
:app:generateDebugAndroidTestResValues UP-TO-DATE
:app:generateDebugAndroidTestResources UP-TO-DATE
:app:mergeDebugAndroidTestResources UP-TO-DATE
:app:processDebugAndroidTestResources UP-TO-DATE
:app:generateDebugAndroidTestSources UP-TO-DATE
:app:processDebugJavaRes UP-TO-DATE :app:compileDebugJavaWithJavac
UP-TO-DATE :app:compileDebugNdk UP-TO-DATE :app:compileDebugSources
UP-TO-DATE :app:processDebugAndroidTestJavaRes UP-TO-DATE
:app:compileDebugAndroidTestJavaWithJavac UP-TO-DATE
:app:compileDebugAndroidTestNdk UP-TO-DATE
:app:compileDebugAndroidTestSources UP-TO-DATE :volley:preDebugBuild
UP-TO-DATE :volley:checkDebugManifest :volley:prepareDebugDependencies
:volley:compileDebugAidl UP-TO-DATE :volley:compileDebugRenderscript
UP-TO-DATE :volley:generateDebugBuildConfig UP-TO-DATE
:volley:generateDebugAssets UP-TO-DATE :volley:mergeDebugAssets
UP-TO-DATE :volley:generateDebugResValues UP-TO-DATE
:volley:generateDebugResources UP-TO-DATE
:volley:packageDebugResources UP-TO-DATE :volley:processDebugManifest
UP-TO-DATE :volley:processDebugResources UP-TO-DATE
:volley:generateDebugSources UP-TO-DATE
:volley:preDebugAndroidTestBuild UP-TO-DATE
:volley:prepareDebugAndroidTestDependencies
:volley:compileDebugAndroidTestAidl UP-TO-DATE :volley:copyDebugLint
UP-TO-DATE :volley:mergeDebugProguardFiles UP-TO-DATE
:volley:processDebugJavaRes UP-TO-DATE
:volley:compileDebugJavaWithJavac UP-TO-DATE :volley:packageDebugJar
UP-TO-DATE :volley:compileDebugNdk UP-TO-DATE
:volley:packageDebugJniLibs UP-TO-DATE :volley:packageDebugLocalJar
UP-TO-DATE :volley:packageDebugRenderscript UP-TO-DATE
:volley:bundleDebug UP-TO-DATE :volley:compileDebugSources UP-TO-DATE
:volley:assembleDebug UP-TO-DATE
:volley:processDebugAndroidTestManifest UP-TO-DATE
:volley:compileDebugAndroidTestRenderscript UP-TO-DATE
:volley:generateDebugAndroidTestBuildConfig UP-TO-DATE
:volley:generateDebugAndroidTestAssets UP-TO-DATE
:volley:mergeDebugAndroidTestAssets UP-TO-DATE
:volley:generateDebugAndroidTestResValues UP-TO-DATE
:volley:generateDebugAndroidTestResources UP-TO-DATE
:volley:mergeDebugAndroidTestResources UP-TO-DATE
:volley:processDebugAndroidTestResources UP-TO-DATE
:volley:generateDebugAndroidTestSources UP-TO-DATE
:volley:processDebugAndroidTestJavaRes UP-TO-DATE
:volley:compileDebugAndroidTestJavaWithJavac UP-TO-DATE
:volley:compileDebugAndroidTestNdk UP-TO-DATE
:volley:compileDebugAndroidTestSources UP-TO-DATE
BUILD SUCCESSFUL
Total time: 3.739 secs
However, I am unable to locate the apk. I tried looking in the app/outputs directory of my project, but that directory has just one folder called logs/ and no other folder. Any suggestions would help.

make project does not make an unsigned apk. I have made the same mistake What you can do is build the unsigned apk using gradle. Just follow the following steps (you can do it faster than it took me to type the steps):
To the left of the run button you should see a drop down list saying "app" with an android logo to the left of it. click it.
click on "Edit Configurations"
Click the green plus button on top left and select "Gradle"
Where it says name, enter what ever you want but leave the rest blank. I set mine as "Assemble"
Below where it says "Before launch: Gradle task" click the green plus sign and select "Run Gradle Task"
Where it says "tasks" type in "assemble"
Press okay and okay to save it
Press the run button. the apk will appear in YourProjectFolderName>app>build>outputs>apk
to change the run button back to running your app via adb just click the drop down button from step 1 again and select "app"
Also note that you cannot install a unsigned APK on a physical device. whether you're emailing the apk, copying it to the phone storage over usb, or any other method it will NOT let you install it. You will either need to create a signed apk (its very simple) or connect each test device to your computer and install it through adb.

Keep product flavors from effecting build times in Android Studio

My app currently has 5 different product flavors. The reasons aren't really that important are in my control, but essentially we need this many product flavors to target different testing servers that have different testing data.
prod {
applicationId "com.us.android"
}
stage {
applicationId "com.us.android.stage"
}
qa {
applicationId "com.us.android.qa"
}
dev {
applicationId "com.us.android.dev"
}
legacy {
applicationId "com.us.android.legacy"
}
The issue I'm running into is whenever I create a new build all of the product flavors are built. So for my project to build it takes about 50 seconds, if I were to comment out all, but the build I care about that time goes down to about 10 seconds. That said commenting them out is great if it were just me, but if I accidentally commit the commented out version, that's going to cause more problems when we try to build elsewhere.
My question is, is there is any clean way I can make it so that in the local development only the build I need is built, but I can still build the other branches as needed?
We are using Jenkins which, I figure seems like it could help us get these builds where we don't need to worry about them, but I'm not sure how.
Edit: Here are some logs, because that might help.
This is when we have all the product flavors but, the build variant set to stageDebug:
Executing tasks: [:us:assembleStageDebug]
Parallel execution with configuration on demand is an incubating feature.
:api:compileJava
:datePickerLibrary:compileLint
:us:preBuild UP-TO-DATE
:us:preStageDebugBuild UP-TO-DATE
:datePickerLibrary:copyReleaseLint UP-TO-DATE
:us:checkStageDebugManifest
:datePickerLibrary:preBuild UP-TO-DATE
:datePickerLibrary:preReleaseBuild UP-TO-DATE
:datePickerLibrary:checkReleaseManifest
:us:preDevDebugBuild UP-TO-DATE
:datePickerLibrary:preDebugAndroidTestBuild
:us:preDevReleaseBuild UP-TO-DATE
:datePickerLibrary:preDebugAndroidTestBuild UP-TO-DATE
:datePickerLibrary:preDebugBuild UP-TO-DATE
:us:preProdDebugBuild UP-TO-DATE
:datePickerLibrary:preDebugUnitTestBuild UP-TO-DATE
:us:preProdReleaseBuild UP-TO-DATE
:datePickerLibrary:preReleaseUnitTestBuild UP-TO-DATE
:us:preQaDebugBuild UP-TO-DATE
:datePickerLibrary:prepareComAndroidSupportSupportV132100Library
:us:preQaReleaseBuild UP-TO-DATE
:us:preStageReleaseBuild UP-TO-DATE
:us:prelegacyDebugBuild UP-TO-DATE
:us:prelegacyReleaseBuild UP-TO-DATE
:datePickerLibrary:prepareComAndroidSupportSupportV132100Library UP-TO-DATE
:datePickerLibrary:prepareComAndroidSupportSupportV42100Library
:us:generateStageDebugBuildConfig UP-TO-DATE
:datePickerLibrary:prepareReleaseDependencies UP-TO-DATE
:us:generateStageDebugResValues
:datePickerLibrary:compileReleaseAidl UP-TO-DATE
:api:processResources UP-TO-DATE
:datePickerLibrary:prepareComAndroidSupportSupportV42100Library UP-TO-DATE
:us:processStageDebugGoogleServices
File google-services.json is missing from module root folder. The Google Quickstart Plugin cannot function without it.
:api:classes
:us:generateStageDebugAssets UP-TO-DATE
:api:classes UP-TO-DATE
:api:compileJava UP-TO-DATE
:api:jar
:us:processStageDebugJavaRes UP-TO-DATE
:datePickerLibrary:compileReleaseRenderscript
:us:compileStageDebugNdk UP-TO-DATE
:us:newRelicInstrumentTask UP-TO-DATE
:datePickerLibrary:generateReleaseBuildConfig UP-TO-DATE
:datePickerLibrary:generateReleaseAssets UP-TO-DATE
:datePickerLibrary:mergeReleaseAssets UP-TO-DATE
:datePickerLibrary:compileReleaseRenderscript UP-TO-DATE
[newrelic.info] Detected cached instrumentation.
:datePickerLibrary:generateReleaseResValues UP-TO-DATE
:datePickerLibrary:generateReleaseResources UP-TO-DATE
:datePickerLibrary:mergeReleaseResources UP-TO-DATE
:datePickerLibrary:processReleaseManifest UP-TO-DATE
:datePickerLibrary:processReleaseResources UP-TO-DATE
:datePickerLibrary:generateReleaseSources UP-TO-DATE
:datePickerLibrary:processReleaseJavaRes UP-TO-DATE
:datePickerLibrary:compileReleaseJavaWithJavac UP-TO-DATE
:datePickerLibrary:extractReleaseAnnotations UP-TO-DATE
:datePickerLibrary:mergeReleaseProguardFiles UP-TO-DATE
:datePickerLibrary:packageReleaseJar UP-TO-DATE
:datePickerLibrary:compileReleaseNdk UP-TO-DATE
:datePickerLibrary:packageReleaseJniLibs UP-TO-DATE
:datePickerLibrary:packageReleaseLocalJar UP-TO-DATE
:datePickerLibrary:packageReleaseRenderscript UP-TO-DATE
:datePickerLibrary:packageReleaseResources
:api:jar UP-TO-DATE
:us:validateDebugSigning
:datePickerLibrary:bundleRelease
:us:validateDebugSigning UP-TO-DATE
:us:prepareAndroidClientDatePickerLibraryUnspecifiedLibrary UP-TO-DATE
:us:prepareComAndroidSupportAppcompatV72221Library UP-TO-DATE
:us:prepareComAndroidSupportCardviewV72221Library UP-TO-DATE
:us:prepareComAndroidSupportDesign2221Library UP-TO-DATE
:us:prepareComAndroidSupportMultidex101Library UP-TO-DATE
:us:prepareComAndroidSupportRecyclerviewV72221Library UP-TO-DATE
:us:prepareComAndroidSupportSupportV132221Library UP-TO-DATE
:us:prepareComAndroidSupportSupportV42301Library UP-TO-DATE
:us:prepareComFacebookAndroidFacebookAndroidSdk3230Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesAnalytics750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesAppinvite750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesBase750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesGcm750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesLocation750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesMaps750Library UP-TO-DATE
:us:prepareComInstabugLibraryInstabugcore17Library UP-TO-DATE
:us:prepareComInstabugLibraryInstabugsupport17Library UP-TO-DATE
:us:prepareComMixpanelAndroidMixpanelAndroid462Library UP-TO-DATE
:us:prepareComRengwuxianMaterialedittextLibrary214Library UP-TO-DATE
:us:prepareComRoomoramaCaldroid220Library UP-TO-DATE
:us:prepareComZendeskSdk1322Library UP-TO-DATE
:us:prepareUkCoChrisjenxCalligraphy201Library UP-TO-DATE
:us:prepareStageDebugDependencies
:us:compileStageDebugAidl UP-TO-DATE
:us:compileStageDebugRenderscript UP-TO-DATE
:us:generateStageDebugResources
:us:mergeStageDebugResources UP-TO-DATE
:us:jrebelPinStageDebugResids UP-TO-DATE
:us:mergeStageDebugAssets UP-TO-DATE
:us:processStageDebugManifest UP-TO-DATE
:us:processStageDebugResources UP-TO-DATE
:us:generateStageDebugSources UP-TO-DATE
:us:compileStageDebugJavaWithJavac UP-TO-DATE
:us:compileStageDebugSources UP-TO-DATE
:us:generateStageDebugJrebelLayout
:us:preDexStageDebug UP-TO-DATE
:us:dexStageDebug UP-TO-DATE
:us:newRelicDeinstrumentTask
[newrelic.info] Deinstrumenting...
:us:jrebelPostProcessStageDebugResids UP-TO-DATE
:us:packageStageDebug UP-TO-DATE
:us:zipalignStageDebug UP-TO-DATE
:us:assembleStageDebug
BUILD SUCCESSFUL
Total time: 34.308 secs
This is when we only have the desired stage product flavor:
Executing tasks: [:urbansitter:assembleStageDebug]
Parallel execution with configuration on demand is an incubating feature.
:api:compileJava
:datePickerLibrary:compileLint
:us:preBuild UP-TO-DATE
:us:preStageDebugBuild UP-TO-DATE
:datePickerLibrary:copyReleaseLint
:us:checkStageDebugManifest UP-TO-DATE
:datePickerLibrary:preBuild UP-TO-DATE
:us:preStageReleaseBuild UP-TO-DATE
:datePickerLibrary:preReleaseBuild UP-TO-DATE
:us:generateStageDebugBuildConfig
:datePickerLibrary:checkReleaseManifest
:datePickerLibrary:preDebugAndroidTestBuild UP-TO-DATE
:datePickerLibrary:preDebugBuild UP-TO-DATE
:datePickerLibrary:preDebugUnitTestBuild UP-TO-DATE
:us:generateStageDebugResValues
:us:generateStageDebugBuildConfig UP-TO-DATE
:datePickerLibrary:preReleaseUnitTestBuild
:us:processStageDebugGoogleServices UP-TO-DATE
File google-services.json is missing from module root folder. The Google Quickstart Plugin cannot function without it.
:datePickerLibrary:prepareComAndroidSupportSupportV132100Library
:us:generateStageDebugAssets UP-TO-DATE
:us:processStageDebugJavaRes UP-TO-DATE
:datePickerLibrary:prepareComAndroidSupportSupportV132100Library UP-TO-DATE
:us:compileStageDebugNdk
:datePickerLibrary:prepareComAndroidSupportSupportV42100Library UP-TO-DATE
:us:newRelicInstrumentTask UP-TO-DATE
:us:compileStageDebugNdk UP-TO-DATE
:api:processResources UP-TO-DATE
[newrelic.info] Detected cached instrumentation.
:datePickerLibrary:prepareReleaseDependencies
:api:classes UP-TO-DATE
:api:jar
:datePickerLibrary:compileReleaseAidl UP-TO-DATE
:datePickerLibrary:compileReleaseRenderscript UP-TO-DATE
:datePickerLibrary:prepareReleaseDependencies UP-TO-DATE
:datePickerLibrary:generateReleaseBuildConfig UP-TO-DATE
:datePickerLibrary:generateReleaseAssets UP-TO-DATE
:datePickerLibrary:mergeReleaseAssets UP-TO-DATE
:datePickerLibrary:generateReleaseResValues UP-TO-DATE
:datePickerLibrary:generateReleaseResources UP-TO-DATE
:datePickerLibrary:mergeReleaseResources
:us:validateDebugSigning UP-TO-DATE
:datePickerLibrary:processReleaseManifest UP-TO-DATE
:datePickerLibrary:processReleaseResources UP-TO-DATE
:datePickerLibrary:generateReleaseSources UP-TO-DATE
:datePickerLibrary:processReleaseJavaRes UP-TO-DATE
:datePickerLibrary:compileReleaseJavaWithJavac UP-TO-DATE
:datePickerLibrary:extractReleaseAnnotations UP-TO-DATE
:datePickerLibrary:mergeReleaseProguardFiles UP-TO-DATE
:datePickerLibrary:packageReleaseJar UP-TO-DATE
:datePickerLibrary:compileReleaseNdk UP-TO-DATE
:datePickerLibrary:packageReleaseJniLibs UP-TO-DATE
:datePickerLibrary:packageReleaseLocalJar UP-TO-DATE
:datePickerLibrary:packageReleaseRenderscript UP-TO-DATE
:datePickerLibrary:packageReleaseResources UP-TO-DATE
:datePickerLibrary:bundleRelease UP-TO-DATE
:us:prepareAndroidClientDatePickerLibraryUnspecifiedLibrary UP-TO-DATE
:us:prepareComAndroidSupportAppcompatV72221Library UP-TO-DATE
:us:prepareComAndroidSupportCardviewV72221Library UP-TO-DATE
:us:prepareComAndroidSupportDesign2221Library UP-TO-DATE
:us:prepareComAndroidSupportMultidex101Library UP-TO-DATE
:us:prepareComAndroidSupportRecyclerviewV72221Library UP-TO-DATE
:us:prepareComAndroidSupportSupportV132221Library UP-TO-DATE
:us:prepareComAndroidSupportSupportV42301Library UP-TO-DATE
:us:prepareComFacebookAndroidFacebookAndroidSdk3230Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesAnalytics750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesAppinvite750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesBase750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesGcm750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesLocation750Library UP-TO-DATE
:us:prepareComGoogleAndroidGmsPlayServicesMaps750Library UP-TO-DATE
:us:prepareComInstabugLibraryInstabugcore17Library UP-TO-DATE
:us:prepareComInstabugLibraryInstabugsupport17Library UP-TO-DATE
:us:prepareComMixpanelAndroidMixpanelAndroid462Library UP-TO-DATE
:us:prepareComRengwuxianMaterialedittextLibrary214Library UP-TO-DATE
:us:prepareComRoomoramaCaldroid220Library UP-TO-DATE
:us:prepareComZendeskSdk1322Library UP-TO-DATE
:us:prepareUkCoChrisjenxCalligraphy201Library UP-TO-DATE
:us:prepareStageDebugDependencies
:us:compileStageDebugAidl UP-TO-DATE
:us:compileStageDebugRenderscript UP-TO-DATE
:us:generateStageDebugResources
:us:mergeStageDebugResources UP-TO-DATE
:us:jrebelPinStageDebugResids UP-TO-DATE
:us:mergeStageDebugAssets UP-TO-DATE
:us:processStageDebugManifest UP-TO-DATE
:us:processStageDebugResources UP-TO-DATE
:us:generateStageDebugSources UP-TO-DATE
:us:compileStageDebugJavaWithJavac UP-TO-DATE
:us:compileStageDebugSources UP-TO-DATE
:us:generateStageDebugJrebelLayout
:us:preDexStageDebug UP-TO-DATE
:us:dexStageDebug UP-TO-DATE
:us:newRelicDeinstrumentTask
[newrelic.info] Deinstrumenting...
:us:jrebelPostProcessStageDebugResids UP-TO-DATE
:us:packageStageDebug UP-TO-DATE
:us:zipalignStageDebug UP-TO-DATE
:us:assembleStageDebug
BUILD SUCCESSFUL
Total time: 8.54 secs
I attached the build logs from both

By using assembleRelease it will build all flavor combinations. assemble will even build all 10 cominations, including all debug ones.
Now you don't specify how you build your project. In case of jenkins, assembleReleaseis probably the way to go, building all your combinations.
For your local builds, just use gradle assembleProdRelease or gradle assembleDevDebug to just build the needed flavor.
By specifying multiple targets you can just build a subset on jenkins, too. e.g.
gradle assembleDevRelease assembleProdRelease [...]
Also, Android Studio has a built-in support for selecting the flavor you want to build. By clicking on Build Variants you can select the variant you want to run with the default run configuration. To switch between flavors you would just select the one you need.

Ionic app says running in Android emulator, but is not

I have an Ionic app that I'm trying to get to work in a Genymotion Virtual Device. Here's what's in my command prompt after I input the command "ionic run android"
Updated the hooks directory to have execute permissions
Running command: "c:\Program Files (x86)\nodejs\node.exe" c:\Users\username\git\mobile\hooks\after_prepare\010_add_platform_class.js c:/Users/username/git/mobile
add to body class: platform-android
Running command: c:\Users\username\git\mobile\platforms\android\cordova\run.bat
ANDROID_HOME=c:\Program Files (x86)\Android\android-sdk
JAVA_HOME=C:\Program Files (x86)\java\jdk1.8.0_45
WARNING: No target specified, deploying to device '192.168.56.101:5555'.
Running: c:\Users\username\git\mobile\platforms\android\gradlew cdvBuildDebug -b c:\Users\username\git\mobile\platforms\android\build.gradle -PcdvBuildArch=x86 -Dorg.gradle.daemon=true
:preBuild
:compileDebugNdk UP-TO-DATE
:preDebugBuild
:checkDebugManifest
:CordovaLib:compileLint
:CordovaLib:copyDebugLint UP-TO-DATE
:CordovaLib:mergeDebugProguardFiles UP-TO-DATE
:CordovaLib:preBuild
:CordovaLib:preDebugBuild
:CordovaLib:checkDebugManifest
:CordovaLib:prepareDebugDependencies
:CordovaLib:compileDebugAidl UP-TO-DATE
:CordovaLib:compileDebugRenderscript UP-TO-DATE
:CordovaLib:generateDebugBuildConfig UP-TO-DATE
:CordovaLib:generateDebugAssets UP-TO-DATE
:CordovaLib:mergeDebugAssets UP-TO-DATE
:CordovaLib:generateDebugResValues UP-TO-DATE
:CordovaLib:generateDebugResources UP-TO-DATE
:CordovaLib:packageDebugResources UP-TO-DATE
:CordovaLib:processDebugManifest UP-TO-DATE
:CordovaLib:processDebugResources UP-TO-DATE
:CordovaLib:generateDebugSources UP-TO-DATE
:CordovaLib:compileDebugJava UP-TO-DATE
:CordovaLib:processDebugJavaRes UP-TO-DATE
:CordovaLib:packageDebugJar UP-TO-DATE
:CordovaLib:compileDebugNdk UP-TO-DATE
:CordovaLib:packageDebugJniLibs UP-TO-DATE
:CordovaLib:packageDebugLocalJar UP-TO-DATE
:CordovaLib:packageDebugRenderscript UP-TO-DATE
:CordovaLib:bundleDebug UP-TO-DATE
:prepareAndroidCordovaLibUnspecifiedDebugLibrary UP-TO-DATE
:prepareDebugDependencies
:compileDebugAidl UP-TO-DATE
:compileDebugRenderscript UP-TO-DATE
:generateDebugBuildConfig UP-TO-DATE
:generateDebugAssets UP-TO-DATE
:mergeDebugAssets UP-TO-DATE
:generateDebugResValues UP-TO-DATE
:generateDebugResources UP-TO-DATE
:mergeDebugResources UP-TO-DATE
:processDebugManifest UP-TO-DATE
:processDebugResources UP-TO-DATE
:generateDebugSources UP-TO-DATE
:compileDebugJava UP-TO-DATE
:preDexDebug UP-TO-DATE
:dexDebug UP-TO-DATE
:processDebugJavaRes UP-TO-DATE
:validateDebugSigning
:packageDebug UP-TO-DATE
:zipalignDebug UP-TO-DATE
:assembleDebug UP-TO-DATE
:cdvBuildDebug UP-TO-DATE
BUILD SUCCESSFUL
Total time: 27.114 secs
Built the following apk(s):
c:\Users\username\git\mobile\platforms\android\build\outputs\apk\android-debug.apk
Using apk: c:\Users\username\git\mobile\platforms\android\build\outputs\apk\android-debug.apk
Installing app on device...
Launching application...
LAUNCH SUCCESS
I should also mention that after the commands finish, there IS a small change on my device. A small menu pops up, with three options, "Wallpaper", "Manage apps", and "System settings". However, the app does not launch, nor does it appear in the list of installed apps.

Fixed it on my own: turns out, the type of virtual device was the problem. I had been using a Google Galaxy Nexus 4.1.1 API 16 device, switching to Google Nexus 4 5.1.0 API 22 fixed it!

Android studio does not start the application on the external device(application does not get installed)

I am trying android studio for the first time.
I have connected external android device via USB (debugging device settings are done in android device). I click on run button with selection as USB device.
The Run console shows this
Waiting for device.
Target device: iball-3g_q1035-0123456789ABCDEF
Whereas my gradle console shows this
Executing tasks: [:app:assembleDebug]
Configuration on demand is an incubating feature.
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:compileDebugNdk UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAppcompatV72200Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42200Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:processDebugResources UP-TO-DATE
:app:generateDebugSources UP-TO-DATE
:app:compileDebugJava UP-TO-DATE
:app:preDexDebug UP-TO-DATE
:app:dexDebug UP-TO-DATE
:app:processDebugJavaRes UP-TO-DATE
:app:validateDebugSigning
:app:packageDebug UP-TO-DATE
:app:zipalignDebug UP-TO-DATE
:app:assembleDebug UP-TO-DATE
BUILD SUCCESSFUL
Total time: 1.292 secs
But my application does not start on the device. Can somebody please let me know where i am doing mistake?(ps : application works perfectly on the eclipse)