CODEWITHSUNDEEP
androidandroid-studio
Sylfo
Sylfo

Reputation: 667

R.java not found on Android Studio 3.2

We've got a strange behaviour in an Android project we inherited. The APK builds without error but the IDE keeps complaining about missing R class in imports.

We are using Android Studio 3.3. (wrong ! see edit at bottom)

After a little more digging, we found that the R.java file is actually generated but in build\generated\not_namespaced_r_class_sources rather than the usual build\generated\sources.

Does anyone already got this ? Even better, does anyone know how to fix this ?

Thanks folks!

Edit : I was actually using Android Studio 3.2…

Upvotes: 4

Views: 3901

Answers (3)

Sylfo
Sylfo

Reputation: 667

First, thanks for all your support !

After reading @Kingfisher Phuoc response, I finally found that it was an incompatibility between my Android Studio 3.2 and using Android gradle plugin 3.3.

I updated my Android Studio to match the plugin and now it is working !

It looks like the way the R class is generated have been updated in the 3.3 version (source: release notes, look for "Faster R class generation for library projects")

Upvotes: 3

Kingfisher Phuoc
Kingfisher Phuoc

Reputation: 8200

In my case, I have to revert the version of android build tool:

classpath 'com.android.tools.build:gradle:3.2.1' // use this version instead of 3.3.0

Upvotes: 4

Ripunjoy Das
Ripunjoy Das

Reputation: 43

In my case R.java always generates in build\generated\not_namespaced_r_class_sources . You can try cleaning and rebuilding the product.

Upvotes: 3

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