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Android Build a Simple Android App (retired 2014) Getting Started with Android Introduction to Methods and Classes

Error in R.java file

Theres an error in my R.java file that says R has already been defined , however its under the only definition of R , how do I fix this?

1 Answer

Ben Jakuben
STAFF
Ben Jakuben
Treehouse Teacher

Can you paste in the code from your MainActivity.java file? It sounds like there's possibly a problem with your import statements at the top, or perhaps something else is off in your "res" directory. Let's start by taking a look at the code.