Builing时报这个错：Failed to compile resources with the following parameters:
-bootclasspath "C:/android-sdk-windows/android-sdk-windows\platforms\android-24\android.jar" -d "E:\unity5.5Project\myfirstcardboard\Temp\StagingArea\bin\classes" -source 1.6 -target 1.6 -encoding UTF-8 "com\google\vr\cardboard\R.java" "com\nide\myfirstcardboard\R.java" "vr\gvr\platform\unity\R.java"；请问老师怎么解决？