Hi everyone,
i got a following errors. i want to know about these errors and how to fix
???
*09-15 13:36:15.019: E/Trace(855): error opening trace file: No such file
or directory (2)*
*09-15 13:36:15.249: D/dalvikvm(855): newInstance failed: no <init>()*
*09-15 13:36:15.259: D/AndroidRuntime(855): Shutting down VM*
*09-15 13:36:15.259: W/dalvikvm(855): threadid=1: thread exiting with
uncaught exception (group=0x40a13300)*
*09-15 13:36:15.299: E/AndroidRuntime(855): FATAL EXCEPTION: main*
*09-15 13:36:15.299: E/AndroidRuntime(855): java.lang.RuntimeException:
Unable to instantiate activity
ComponentInfo{com.example.importdatabase/com.example.importdatabase.DbManager}:
java.lang.InstantiationException: can't instantiate class
com.example.importdatabase.DbManager; no empty constructor*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.app.ActivityThread.access$600(ActivityThread.java:130)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.os.Handler.dispatchMessage(Handler.java:99)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.os.Looper.loop(Looper.java:137)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.app.ActivityThread.main(ActivityThread.java:4745)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
java.lang.reflect.Method.invokeNative(Native Method)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
java.lang.reflect.Method.invoke(Method.java:511)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
dalvik.system.NativeStart.main(Native Method)*
*09-15 13:36:15.299: E/AndroidRuntime(855): Caused by:
java.lang.InstantiationException: can't instantiate class
com.example.importdatabase.DbManager; no empty constructor*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
java.lang.Class.newInstanceImpl(Native Method)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
java.lang.Class.newInstance(Class.java:1319)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.app.Instrumentation.newActivity(Instrumentation.java:1053)*
*09-15 13:36:15.299: E/AndroidRuntime(855): at
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)*
*09-15 13:36:15.299: E/AndroidRuntime(855): ... 11 more*
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