NoClassDefFoundError on Calligraphy library

Question

After adding compile \'com.android.support:support-v13:21.0.+\' to build.gradle, I had some conflicts on building my app, so I had to add m

Answer 1

If you support API levels under 21, your Application class should extend MultiDexApplication from the support library.

class MyApplication extends MultiDexApplication

If you do not have a custom Application class, than you should add the MultiDexApplication class to your manifest directly

See https://developer.android.com/tools/building/multidex.html