官网最新下载的android环信sdk,导入编译出错：java.lang.RuntimeException: Unable to instantiate application com.hyphenate.chatuidemo.DemoApplication: java.lang.ClassNotFoundException: Didn't find class "com.hyphenate.chatuidemo.DemoApplication" on path: DexPathList[[zip file "/data/app/com.hyphenate.chatuidemo-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.hyphenate.chatuidemo-1, /system/lib]]
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.app.LoadedApk.makeApplication(LoadedApk.java:516)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4317)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.app.ActivityThread.access$1500(ActivityThread.java:135)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.os.Handler.dispatchMessage(Handler.java:102)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.os.Looper.loop(Looper.java:136)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.app.ActivityThread.main(ActivityThread.java:5017)
06-13 05:20:31.200: E/AndroidRuntime(1079): at java.lang.reflect.Method.invokeNative(Native Method)
06-13 05:20:31.200: E/AndroidRuntime(1079): at java.lang.reflect.Method.invoke(Method.java:515)
06-13 05:20:31.200: E/AndroidRuntime(1079): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
06-13 05:20:31.200: E/AndroidRuntime(1079): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
06-13 05:20:31.200: E/AndroidRuntime(1079): at dalvik.system.NativeStart.main(Native Method)
06-13 05:20:31.200: E/AndroidRuntime(1079): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.hyphenate.chatuidemo.DemoApplication" on path: DexPathList[[zip file "/data/app/com.hyphenate.chatuidemo-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.hyphenate.chatuidemo-1, /system/lib]]
06-13 05:20:31.200: E/AndroidRuntime(1079): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
06-13 05:20:31.200: E/AndroidRuntime(1079): at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
06-13 05:20:31.200: E/AndroidRuntime(1079): at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.app.Instrumentation.newApplication(Instrumentation.java:975)
06-13 05:20:31.200: E/AndroidRuntime(1079): at android.app.LoadedApk.makeApplication(LoadedApk.java:511)
06-13 05:20:31.200: E/AndroidRuntime(1079): ... 11 more
请问这是为什么，难道是我导入有问题
