Unable to instantiate application Caused by: java.lang.ClassNotFoundException: Didn't find class on path: DexPathList
问题 Today I fall into a strange problem, my app suddenly stop working on my USB plugged device. However it could run fine on other real devices and simulator devices. The error dialog on screen is as usual: Unfortunately "your app name" has stopped. To get the error messages, I run my app in debug mode and see this: FATAL EXCEPTION: main Process: com.yourapp.packagename, PID: 20036 java.lang.RuntimeException: Unable to instantiate application com.android.tools.fd.runtime.BootstrapApplication: