Question 127782 in Android Studio Question posted in
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Android Studio – Random error while trying to run my app in Android Studio

I’m getting this error after trying to run my project after I had created another one before to attempt something:

01/24 19:14:48: Launching 'app' on Pixel 2 API 30.
Install successfully finished in 412 ms.
$ adb shell am start -n "com.example.wolfix/com.app.wolfix.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Error while executing: am start -n "com.example.wolfix/com.app.wolfix.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.example.wolfix/com.app.wolfix.MainActivity }
Error type 3
Error: Activity class {com.example.wolfix/com.app.wolfix.MainActivity} does not exist.

Error while Launching activity

Why does it say "Error: Activity class {com.example.wolfix/com.app.wolfix.MainActivity} does not exist." if I have a MainActivity class?

This is really weird because it didn’t happen before but started happening now…

I have no idea, can someone help me with this?

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2

Answers


  1. 0

    If Package Name Is Different Then This Type Of Error Occurs

    Check Package Name In All The Activity & build.gradle & Manifest.

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  2. 0

    So I got this exact error after upgrading Android Studio and Gradle. Deleting (or at the very least renaming) the .idea folder fixed the issue and cleaned up a lot of files that seemed to be detritus left over from older versions.

    My suspicion is there’s an upgrade issue from some versions of android studio to the new one

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