Android Studio - App won't open in emulator for an unmodified Basic App template

Question

I just installed Android Studio and have started a new app (Basic App template with toolbar and floating button). I have enabled Virtualization in my BIOS and have added a Pixel 2 (version 29) emulator.

When I press the Run button, the emulator opens the Pixel 2 and powers on, but the app doesn't open and no icons appear (apart from the standard phone, sms, chrome, playstore icons). I press Run again and still nothing happens (apart from Gradle building).

There are no errors that I can see.

Edit: Every now and then when I press Run I see the following error message in Event Log:

8:52 AM Error during Sync: Remote object doesn't exist!

This only occurs sometimes. Other time, it just says:

8:44 AM Executing tasks: [:app:assembleDebug]

8:44 AM Gradle build finished in 3 s 972 ms

I have tried:

• Deleting the emulator from AVD Manager then creating a new one (Pixel 2, version 29, everything else left as default).
• Deleting the project and creating a new one
• Uninstalling and reinstalling Android Studio
• Restarting computer
• Going to File > Invalidate Caches / Restart and invaliding then restarting

Edit 2:

I was just asked to check Logcat in a comment. There is a lot in there but this part is highlighted red and repeats throughout the logs:

2019-08-02 08:53:21.707 2031-9184/? E/LoadManifestTask: Can't find Chimera operation impl class com.google.android.gms.walletp2p.infra.phenotype.PhenotypeCommitIntentOperation dropping operation
    java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.walletp2p.infra.phenotype.PhenotypeCommitIntentOperation" on path: DexPathList[[zip file "/system/product/priv-app/PrebuiltGmsCore/PrebuiltGmsCore.apk"],nativeLibraryDirectories=[/data/user_de/0/com.google.android.gms/app_extracted_libs/x86, /system/product/priv-app/PrebuiltGmsCore/lib/x86, /system/product/priv-app/PrebuiltGmsCore/PrebuiltGmsCore.apk!/lib/x86, /system/lib, /system/product/lib, /system/lib, /system/product/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at ecj.<init>(:com.google.android.gms@16910022@16.9.10 (040700-247503114):5)
        at eck.run(:com.google.android.gms@16910022@16.9.10 (040700-247503114):53)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:919)

Answer 1

This is a very undesirable kind of system bug. Well, the point is here that, sometimes even creating a simple data directory won't work. You would have to go to the source and create a folder yourself. This case is same. Attempting 'Invalidate caches and restating' isn't working, so you have to do it manually. This is how:

Solution:

Close Android Studio

Go to C:\Users\UserName\.android and rename:

• build-cache folder to build-cache.bak

Go to C:\Users\UserName\.AndroidStudio3.4.2\system and rename these folders:

• caches to caches.bak

• compiler to compiler.bak

• compile-server to compile-server.bak

• conversion to conversion.bak

• external_build_system to external_build_system.bak

• frameworks to frameworks.bak

• gradle to gradle.bak

• resource_folder_cache to resource_folder_cache.bak

Open the Android Studio and open your project again.

Hope it solves your case also. Did for me when I faced the same problem around a year ago.