Android Studio 真机调试出现 Unable to instantiate activity ComponentInfo的解决方案

详细解决方案地址：

https://blog.csdn.net/chjqxxxx/article/details/78180815

问题：

项目AVD调试的时候正常，当连接真机的时候出现以下错误：

 FATAL EXCEPTION: main
Process: com.xxxxxxxxx.android, PID: 24099
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.xxxxxxxxx.android/com.xxxxxxxxx.android.WebActivity}: java.lang.ClassNotFoundException: Didn't find class "com.xxxxxxxxx.android.WebActivity" on path: DexPathList[[zip file "/data/app/com.xxxxxxxxx.android-1/base.apk"],nativeLibraryDirectories=[/data/app/com.xxxxxxxxx.android-1/lib/arm, /data/app/com.xxxxxxxxx.android-1/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2721)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2880)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1617)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:185)
at android.app.ActivityThread.main(ActivityThread.java:6493)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:916)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:806)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.xxxxxxxxx.android.WebActivity" on path: DexPathList[[zip file "/data/app/com.xxxxxxxxx.android-1/base.apk"],nativeLibraryDirectories=[/data/app/com.xxxxxxxxx.android-1/lib/arm, /data/app/com.xxxxxxxxx.android-1/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at android.app.Instrumentation.newActivity(Instrumentation.java:1079)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2711)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2880) 
at android.app.ActivityThread.-wrap12(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1617) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:185) 
at android.app.ActivityThread.main(ActivityThread.java:6493) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:916) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:806) 

解决方案：

打开IDE，进入File—>Setting—>Build,Execution,Deployment—>Instant Run

将将enable instant run to hot swap code/resource changes on deploy的勾去掉