I tried cleaning and rebuilding my project but it didn't help. I also don't have any errors in my XML file. When I run the app it works but R class stays in red. Please help me.
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File->Invalidate cache and restart – Doc Apr 17 '19 at 06:58
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Also, try to make the project @Shams – Abhishek Bhardwaj Apr 17 '19 at 06:59
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You might have androidX related issue, please migrate to latest version of android studio, – Amit Prajapati Apr 17 '19 at 07:00
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Its Probably a gradle Version issue . See https://stackoverflow.com/questions/53360220/android-studio-cannot-resolve-symbol-r-but-project-compiles-and-runs.. – ADM Apr 17 '19 at 07:23
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It happens sometimes do:
File -> Invalidate Caches/Restart
Also "Sync with file system" or "Sync project with Gradle files" might help
Antonis Radz
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Thanks guys. I solved this problem change gradle version. classpath 'com.android.tools.build:gradle:3.2.0' in build.gradle
Shams
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