# Unable to rename input apk issue

**URL:** <https://discuss.appium.io/t/unable-to-rename-input-apk-issue/11558>\
**Category:** Issues/Bugs\
**Created:** [August 4, 2016, 6:56pm UTC](https://discuss.appium.io/t/unable-to-rename-input-apk-issue/11558 "2016-08-04T18:56:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![felixLivs](https://discuss.appium.io/letter_avatar_proxy/v4/letter/f/ecd19e/32.png) [@felixLivs](https://discuss.appium.io/u/felixLivs)\
**Post date:** [August 4, 2016, 6:56pm UTC](https://discuss.appium.io/t/unable-to-rename-input-apk-issue/11558/1 "2016-08-04T18:56:29Z")

</div>

When Crashlytics is integrated into an APK, Appium can no longer rename input apk. What causes this? and how do i get around it?

Stack Trace as follows:

_[31merror_[39m: Failed to start an Appium session, err was: Error: Command failed: C:\Windows\system32\cmd.exe /s /c “java -jar “C:\Program Files (x86)\Appium\node\_modules\appium\node\_modules\appium-adb\jars\sign.jar” C:\sampleAPK\app-Stage-debug.apk --override”  
Exception in thread “main” java.lang.RuntimeException: Unable to rename input apk. C:\sampleAPK\app-Stage-debug.apk  
at s.Sign.sign(Sign.java:421)  
at s.Sign.main(Sign.java:532)  
_[36minfo_[39m: [debug] Error: Command failed: C:\Windows\system32\cmd.exe /s /c “java -jar “C:\Program Files (x86)\Appium\node\_modules\appium\node\_modules\appium-adb\jars\sign.jar” C:\sampleAPK\app-Stage-debug.apk --override”  
Exception in thread “main” java.lang.RuntimeException: Unable to rename input apk. C:\sampleAPK\app-Stage-debug.apk  
at s.Sign.sign(Sign.java:421)  
at s.Sign.main(Sign.java:532)  
at ChildProcess.exithandler (child\_process.js:213:12)  
at emitTwo (events.js:87:13)  
at ChildProcess.emit (events.js:172:7)  
at maybeClose (internal/child\_process.js:827:16)  
at Process.ChildProcess.\_handle.onexit (internal/child\_process.js:211:5)