请在更改后帮我重启我的应用。 当我尝试更改某些方法签名并尝试运行应用程序时，我有一个稳定的致命异常，但如果我清理项目并重建应用程序所有工作（一次），此过程我需要在更改后进行所有操作。
logcat的：
08-02 22:11:27.157 8303-8303/com.hellopal.android E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.hellopal.android, PID: 8303
java.lang.RuntimeException: Unable to instantiate application com.hellopal.android.ProgramController: java.lang.ClassNotFoundException:
Didn't find class "com.hellopal.android.ProgramController" on path:
DexPathList[[zip file "/data/app/com.hellopal.android-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.hellopal.android-2, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:507)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4748)
at android.app.ActivityThread.access$1600(ActivityThread.java:171)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1369)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5679)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.hellopal.android.ProgramController" on path:
DexPathList[[zip file "/data/app/com.hellopal.android-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.hellopal.android-2, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:67)
at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
at android.app.Instrumentation.newApplication(Instrumentation.java:981)
at android.app.LoadedApk.makeApplication(LoadedApk.java:502)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4748)
at android.app.ActivityThread.access$1600(ActivityThread.java:171)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1369)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5679)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
at dalvik.system.NativeStart.main(Native Method)