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Android Android Lists and Adapters (2015) Lists with RecyclerViews Adding Methods for a RecyclerView Adapter

Problem with losing import of R class

Not really a question, but I ran into a problem that other might face. I had an error in one of my xml files that was pretty well hidden (I wrote layout_alignCenterVertical instead of layout_centerVertical) and when i did the clean and rebuild that Ben suggested in this video, it caused the R class import to be unrecognized in all of my classes.

So if you have this problem, you probably just have an xml error, just fix it and rebuild.

2 Answers

David Anton
David Anton
Courses Plus Student 30,936 Points
  1. Fix your xml syntax error
    1. Clean
    2. Rebuild
    3. Restart Android Studio
Gnani Pasupula
Gnani Pasupula
3,915 Points

Go to File on Top right corner > Invalidate Caches / Restart > Invalidate and Restart. It worked for me .