[Android Apps and Games] Rockermen:
Problem with Java

=========================================================================

= This script will extract the WhatsApp Key file and DB on Android 4.0+ =

= You DO NOT need root for this to work but you DO need Java installed. =

= If your WhatsApp version is greater than 2.11.431 (most likely), then =

= a legacy version will be installed temporarily in order to get backup =

= permissions. You will NOT lose ANY data and your current version will =

= be restored at the end of the extraction process so try not to panic. =

= Script by: TripCode (Greets to all who visit: XDA Developers Forums). =

= Thanks to: dragomerlin for ABE and to Abinash Bishoyi for being cool. =

= ### Version: v4.7 (12/10/2016) ### =

=========================================================================

Please connect your Android device with USB Debugging enabled:

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

WhatsApp 2.17.79 installed

Found legacy WhatsApp 2.11.431 in local folder

Backing up WhatsApp 2.17.79

4587 KB/s (29034509 bytes in 6.180s)

Backup complete

Installing legacy WhatsApp 2.11.431

3950 KB/s (18329558 bytes in 4.531s)

pkg: /data/local/tmp/LegacyWhatsApp.apk

Success

Install complete

Now unlock your device and confirm the backup operation.

Please enter your backup password (leave blank for none) and press Enter:

Exception in thread "main" java.lang.reflect.InvocationTargetException

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)

Caused by: java.lang.RuntimeException: java.lang.NumberFormatException: For input string: ""

at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:420)

at org.nick.abe.Main.main(Main.java:128)

... 5 more

Caused by: java.lang.NumberFormatException: For input string: ""

at java.lang.NumberFormatException.forInputString(Unknown Source)

at java.lang.Integer.parseInt(Unknown Source)

at java.lang.Integer.parseInt(Unknown Source)

at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:280)

... 6 more

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Error is not recoverable: exiting now

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Error is not recoverable: exiting now

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Error is not recoverable: exiting now

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Error is not recoverable: exiting now

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Cannot open tmp\whatsapp.tar: No such file or directory

C:\Users\Usuario\Downloads\WhatsApp-Key-DB-Extractor-master\bin\tar.exe: Error is not recoverable: exiting now

Cleaning up temporary files ...

Done

Restoring WhatsApp 2.17.79

4181 KB/s (29034509 bytes in 6.780s)

pkg: /data/local/tmp/com.whatsapp-2.apk

Success

Restore complete

Removing WhatsApp 2.17.79 temporary apk

Operation complete

Presione una tecla para continuar . . .

Can someone tell me how to resolve this problem?