Cannot resolve symbol AppCompatActivity - Support v7 libraries aren't recognized?

Question

I\'m trying to figure out why the heck my Android studio isn\'t recognizing the AppCompat v7 library correctly. The import statement below shows up as gray and says there\'s

Answer 1

If you have already tried

1. Invalidating caches and restarting
2. Cleaning/rebuilding the project
3. ./gradlew clean assemble
4. added implementation
   "com.android.support:support-v4:23.1.1"
   "com.android.support:appcompat-v7:23.1.1"
   "com.android.support:support-annotations:23.1.1"
5. Corrected import to android.support.v7.app.AppCompatActivity;
6. Corrected any existing androidx imports

Still facing issue then please read below

Finally found the solution

I tried everything mentioned in all the answers and failed.

Go to gradle.properties make these flags false

android.useAndroidX=false

//Automatically convert third-party libraries to use AndroidX

android.enableJetifier=false

The above flags were

"true ,for me and hence gradle won't download v7 components"