App won't run under Android Studio 2.0, after upgrading from 1.5

Question

I recently upgraded my Android Studio from 1.5 to 2.0. My app would build and run nicely on Android 1.5. Now, when I try run the app on my smartphone, it gives me this error:

Error:Execution failed for task ':app:transformClassesWithInstantRunForDebug'.
> 24

When opening my project on Android Studio 2.0, a message box appeared, telling me to upgrade my gradle to version 2, which I did. I am not sure why I am getting this error.

Here is the output I get as I try to run the app on my phone:

Executing tasks: [clean, :app:generateDebugSources, :app:mockableAndroidJar, :app:prepareDebugUnitTestDependencies, :app:generateDebugAndroidTestSources, :app:compileDebugSources, :app:compileDebugUnitTestSources, :app:compileDebugAndroidTestSources]
Configuration on demand is an incubating feature.
Incremental java compilation is an incubating feature.
:clean UP-TO-DATE
:app:clean
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAnimatedVectorDrawable2321Library
:app:prepareComAndroidSupportAppcompatV72321Library
:app:prepareComAndroidSupportCardviewV72321Library
:app:prepareComAndroidSupportDesign2321Library
:app:prepareComAndroidSupportMediarouterV72300Library
:app:prepareComAndroidSupportRecyclerviewV72321Library
:app:prepareComAndroidSupportSupportV42321Library
:app:prepareComAndroidSupportSupportVectorDrawable2321Library
:app:prepareComGoogleAndroidGmsPlayServices840Library
:app:prepareComGoogleAndroidGmsPlayServicesAds840Library
:app:prepareComGoogleAndroidGmsPlayServicesAnalytics840Library
:app:prepareComGoogleAndroidGmsPlayServicesAppindexing840Library
:app:prepareComGoogleAndroidGmsPlayServicesAppinvite840Library
:app:prepareComGoogleAndroidGmsPlayServicesAppstate840Library
:app:prepareComGoogleAndroidGmsPlayServicesAuth840Library
:app:prepareComGoogleAndroidGmsPlayServicesBase840Library
:app:prepareComGoogleAndroidGmsPlayServicesBasement840Library
:app:prepareComGoogleAndroidGmsPlayServicesCast840Library
:app:prepareComGoogleAndroidGmsPlayServicesDrive840Library
:app:prepareComGoogleAndroidGmsPlayServicesFitness840Library
:app:prepareComGoogleAndroidGmsPlayServicesGames840Library
:app:prepareComGoogleAndroidGmsPlayServicesGcm840Library
:app:prepareComGoogleAndroidGmsPlayServicesIdentity840Library
:app:prepareComGoogleAndroidGmsPlayServicesLocation840Library
:app:prepareComGoogleAndroidGmsPlayServicesMaps840Library
:app:prepareComGoogleAndroidGmsPlayServicesMeasurement840Library
:app:prepareComGoogleAndroidGmsPlayServicesNearby840Library
:app:prepareComGoogleAndroidGmsPlayServicesPanorama840Library
:app:prepareComGoogleAndroidGmsPlayServicesPlus840Library
:app:prepareComGoogleAndroidGmsPlayServicesSafetynet840Library
:app:prepareComGoogleAndroidGmsPlayServicesVision840Library
:app:prepareComGoogleAndroidGmsPlayServicesWallet840Library
:app:prepareComGoogleAndroidGmsPlayServicesWearable840Library
:app:prepareDebugDependencies
:app:compileDebugAidl
:app:compileDebugRenderscript
:app:generateDebugBuildConfig
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources
:app:mergeDebugResources
:app:processDebugManifest
:app:processDebugResources
:app:generateDebugSources
:app:mockableAndroidJar
:app:preDebugUnitTestBuild UP-TO-DATE
:app:prepareDebugUnitTestDependencies
:app:preDebugAndroidTestBuild UP-TO-DATE
:app:prepareDebugAndroidTestDependencies
:app:compileDebugAndroidTestAidl
:app:processDebugAndroidTestManifest
:app:compileDebugAndroidTestRenderscript
:app:generateDebugAndroidTestBuildConfig
:app:generateDebugAndroidTestAssets UP-TO-DATE
:app:mergeDebugAndroidTestAssets
:app:generateDebugAndroidTestResValues UP-TO-DATE
:app:generateDebugAndroidTestResources
:app:mergeDebugAndroidTestResources
:app:processDebugAndroidTestResources
:app:generateDebugAndroidTestSources
:app:compileDebugJavaWithJavac
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources
:app:compileDebugUnitTestJavaWithJavac
:app:processDebugJavaRes UP-TO-DATE
:app:processDebugUnitTestJavaRes UP-TO-DATE
:app:compileDebugUnitTestSources
:app:compileDebugAndroidTestJavaWithJavac
:app:compileDebugAndroidTestNdk UP-TO-DATE
:app:compileDebugAndroidTestSources

BUILD SUCCESSFUL

Total time: 1 mins 31.987 secs
Executing tasks: [:app:clean, :app:generateDebugSources, :app:mockableAndroidJar, :app:prepareDebugUnitTestDependencies, :app:generateDebugAndroidTestSources, :app:assembleDebug]

Configuration on demand is an incubating feature.
Incremental java compilation is an incubating feature.
:app:clean
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAnimatedVectorDrawable2321Library
:app:prepareComAndroidSupportAppcompatV72321Library
:app:prepareComAndroidSupportCardviewV72321Library
:app:prepareComAndroidSupportDesign2321Library
:app:prepareComAndroidSupportMediarouterV72300Library
:app:prepareComAndroidSupportRecyclerviewV72321Library
:app:prepareComAndroidSupportSupportV42321Library
:app:prepareComAndroidSupportSupportVectorDrawable2321Library
:app:prepareComGoogleAndroidGmsPlayServices840Library
:app:prepareComGoogleAndroidGmsPlayServicesAds840Library
:app:prepareComGoogleAndroidGmsPlayServicesAnalytics840Library
:app:prepareComGoogleAndroidGmsPlayServicesAppindexing840Library
:app:prepareComGoogleAndroidGmsPlayServicesAppinvite840Library
:app:prepareComGoogleAndroidGmsPlayServicesAppstate840Library
:app:prepareComGoogleAndroidGmsPlayServicesAuth840Library
:app:prepareComGoogleAndroidGmsPlayServicesBase840Library
:app:prepareComGoogleAndroidGmsPlayServicesBasement840Library
:app:prepareComGoogleAndroidGmsPlayServicesCast840Library
:app:prepareComGoogleAndroidGmsPlayServicesDrive840Library
:app:prepareComGoogleAndroidGmsPlayServicesFitness840Library
:app:prepareComGoogleAndroidGmsPlayServicesGames840Library
:app:prepareComGoogleAndroidGmsPlayServicesGcm840Library
:app:prepareComGoogleAndroidGmsPlayServicesIdentity840Library
:app:prepareComGoogleAndroidGmsPlayServicesLocation840Library
:app:prepareComGoogleAndroidGmsPlayServicesMaps840Library
:app:prepareComGoogleAndroidGmsPlayServicesMeasurement840Library
:app:prepareComGoogleAndroidGmsPlayServicesNearby840Library
:app:prepareComGoogleAndroidGmsPlayServicesPanorama840Library
:app:prepareComGoogleAndroidGmsPlayServicesPlus840Library
:app:prepareComGoogleAndroidGmsPlayServicesSafetynet840Library
:app:prepareComGoogleAndroidGmsPlayServicesVision840Library
:app:prepareComGoogleAndroidGmsPlayServicesWallet840Library
:app:prepareComGoogleAndroidGmsPlayServicesWearable840Library
:app:prepareDebugDependencies
:app:compileDebugAidl
:app:compileDebugRenderscript
:app:generateDebugBuildConfig
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources
:app:mergeDebugResources
:app:processDebugManifest
:app:processDebugResources
:app:generateDebugSources
:app:mockableAndroidJar UP-TO-DATE
:app:preDebugUnitTestBuild UP-TO-DATE
:app:prepareDebugUnitTestDependencies
:app:preDebugAndroidTestBuild UP-TO-DATE
:app:prepareDebugAndroidTestDependencies
:app:compileDebugAndroidTestAidl
:app:processDebugAndroidTestManifest
:app:compileDebugAndroidTestRenderscript
:app:generateDebugAndroidTestBuildConfig
:app:generateDebugAndroidTestAssets UP-TO-DATE
:app:mergeDebugAndroidTestAssets
:app:generateDebugAndroidTestResValues UP-TO-DATE
:app:generateDebugAndroidTestResources
:app:mergeDebugAndroidTestResources
:app:processDebugAndroidTestResources
:app:generateDebugAndroidTestSources
:app:compileDebugJavaWithJavac
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources
:app:buildInfoDebugLoader
:app:transformClassesWithExtractJarsForDebug
:app:transformClassesWithInstantRunVerifierForDebug
:app:transformClassesWithJavaResourcesVerifierForDebug
:app:mergeDebugJniLibFolders
:app:transformNative_libsWithMergeJniLibsForDebug
:app:processDebugJavaRes UP-TO-DATE
:app:transformResourcesWithMergeJavaResForDebug
:app:transformResourcesAndNative_libsWithJavaResourcesVerifierForDebug UP-TO-DATE
:app:transformClassesWithInstantRunForDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformClassesWithInstantRunForDebug'.
> 24

* Try:

Answer 1

Try to disable the Instant Run option in Android Studio 2.0

This is helped me.