NoClassDefFoundError: Failed resolution of: Landroid/support/v7/appcompat/R$styleable

Question

Newbie trying to finish the My first App tutorial provided by Google. On the way to this fatal exception I did import a lot of random packages to get rid of \"cannot be reso

Answer 1

I deleted 'build' folder in "yourAppName\app" folder

and everything worked fine. If above solution didn't work, try this. build folder will be auto-generate when you build your project again.