Public class mainActivity extends Activity implements AdapterView. I have tried extending ActionBaractivity and nothing still not getting that method recognized. I have added the support libraries in my app by copying the jar files, dropping them into libs folder, right click and adding them as library. I can't seem to get my app to compile correctly. We collected this answer from Stack Overflow, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.This thing is driving me nuts. Create a webview and solve webview error in android studio cannot resolve symbol error in Android StudioHow to Fix:Cannot resolve symbol webView on Android S.
To clarify, I am running this on windows 10, but it should work on MacOS and Linux as well. If your code uses this class, the exception on the IDE 'Cannot resolve symbol 'Activity Manager'' will appear due to the absence of importing the related class.
This closes down the whole program and takes the most amount of time, in my opinion. Android Studio will display Cannot resolve symbol errors because this code references classes that are not imported. If all else fails, Invalidate Caches and Restart (under file) usually does the trick. This is the placement for the items in Android Studio 3.6.1 on Windows 10. Next, Sync project with Gradle files (under file): You should do two things, first clean the project (in build menu) - it deletes the build directory which may be the culprit: Do not save any image with Capital letters.I am facing an error ' Unable to resolve symbol R' I would like to know what causes this if anyone knows. I am using what I believe to be the most recent version of Android Studio and the project was created with Android Studio and worked without any "cannot resolve R" problems. I have read many other questions on here about something similar but most involved importing projects from Eclipse. Also every time there is R.layout.something it is underlined in red and says "cannot resolve method setContentView(?)". In every instance in all of my classes where I reference R.id.something, the R is in red and it says "cannot resolve symbol R".
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