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    Can occur when you try to convert a String to a numeric value but the String is not well formatted for the conversion.

Solutions on the web

via Google Groups by Radharc, 1 year ago
via GitHub by OrpheeGT
, 2 years ago
This exception has no message.
via by Unknown author, 2 years ago
java.lang.NumberFormatException: Invalid int: " 4"	at java.lang.Integer.invalidInt(	at java.lang.Integer.parse(	at java.lang.Integer.parseInt(	at java.lang.Short.parseShort(	at	at	at	at	at	at$BroadcastHandler.handleMessage(	at android.os.Handler.dispatchMessage(	at android.os.Looper.loop(	at	at java.lang.reflect.Method.invokeNative(Native Method)	at java.lang.reflect.Method.invoke(	at$	at	at dalvik.system.NativeStart.main(Native Method)