# Problem in uploading APK in build by ionic

**URL:** <https://forum.ionicframework.com/t/problem-in-uploading-apk-in-build-by-ionic/128847>\
**Category:** ionic-v3\
**Created:** [April 25, 2018, 8:09am UTC](https://forum.ionicframework.com/t/problem-in-uploading-apk-in-build-by-ionic/128847 "2018-04-25T08:09:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Hamender](https://avatars.discourse-cdn.com/v4/letter/h/f0a364/32.png) [@Hamender](https://forum.ionicframework.com/u/Hamender)\
**Post date:** [April 25, 2018, 8:09am UTC](https://forum.ionicframework.com/t/problem-in-uploading-apk-in-build-by-ionic/128847/1 "2018-04-25T08:09:40Z")

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I am following the same process as followed before but now after signing and ziplining.  
I am unable to upload the apk to playstore.  
Upload failed  
You uploaded an APK with an invalid signature (learn more about signing). Error from apksigner: ERROR (Jar signer CERT.RSA): JAR signature META-INF/CERT.SF indicates the APK is signed using APK Signature Scheme v2 but no such signature was found. Signature stripped?

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**Author:** ![mhartington](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/mhartington/32/137757_2.png) [@mhartington](https://forum.ionicframework.com/u/mhartington)\
**Post date:** [July 19, 2021, 9:38pm UTC](https://forum.ionicframework.com/t/problem-in-uploading-apk-in-build-by-ionic/128847/2 "2021-07-19T21:38:38Z")

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