# Ionic package build IOS Error

**URL:** <https://forum.ionicframework.com/t/ionic-package-build-ios-error/128655>\
**Category:** ionic-v1\
**Created:** [April 23, 2018, 12:18pm UTC](https://forum.ionicframework.com/t/ionic-package-build-ios-error/128655 "2018-04-23T12:18:34Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![valarproappdev](https://avatars.discourse-cdn.com/v4/letter/v/87869e/32.png) [@valarproappdev](https://forum.ionicframework.com/u/valarproappdev)\
**Post date:** [April 23, 2018, 12:18pm UTC](https://forum.ionicframework.com/t/ionic-package-build-ios-error/128655/1 "2018-04-23T12:18:34Z")

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Hi, I am trying to use ionic package build for IOS using ionic pro and legacy account, but its showing me below error.  
[ERROR] Sorry! The configured backend (pro) does not know about ionic package .  
Let me know the package build process steps. How to do package my ionic 1 project. Thanks in advance.

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**Author:** ![Sujan12](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/sujan12/32/108395_2.png) [@Sujan12](https://forum.ionicframework.com/u/Sujan12)\
**Post date:** [April 23, 2018, 12:23pm UTC](https://forum.ionicframework.com/t/ionic-package-build-ios-error/128655/2 "2018-04-23T12:23:18Z")

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Docs for Ionic Pro Package are here: [https://ionicframework.com/docs/pro/package/](https://ionicframework.com/docs/pro/package/)

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**Author:** ![valarproappdev](https://avatars.discourse-cdn.com/v4/letter/v/87869e/32.png) [@valarproappdev](https://forum.ionicframework.com/u/valarproappdev)\
**Post date:** [April 23, 2018, 12:51pm UTC](https://forum.ionicframework.com/t/ionic-package-build-ios-error/128655/3 "2018-04-23T12:51:46Z")

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Thanks for your response. I can able to login and SSH setup, then I give “sudo ionic package build ios --release” after that only this error showing  
ERROR] Sorry! The configured backend (pro) does not know about ionic package build.  
You can switch backends with ionic config set -g backend (choose from  
pro, legacy). How to do package build?

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<div class="post-metadata">

**Author:** ![Sujan12](https://sea1.discourse-cdn.com/ionicframework/user_avatar/forum.ionicframework.com/sujan12/32/108395_2.png) [@Sujan12](https://forum.ionicframework.com/u/Sujan12)\
**Post date:** [April 23, 2018, 1:08pm UTC](https://forum.ionicframework.com/t/ionic-package-build-ios-error/128655/4 "2018-04-23T13:08:11Z")

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Read the link I posted.

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<div class="post-metadata">

**Author:** ![valarproappdev](https://avatars.discourse-cdn.com/v4/letter/v/87869e/32.png) [@valarproappdev](https://forum.ionicframework.com/u/valarproappdev)\
**Post date:** [April 25, 2018, 6:02am UTC](https://forum.ionicframework.com/t/ionic-package-build-ios-error/128655/5 "2018-04-25T06:02:36Z")

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I try to convert IOS certificate (PEM to .p12) format, using (openssl pkcs12 -export -inkey keyname.key -in ios\_development.cer.pem -out Certificates.p12) but getting below error ,

Error opening private key keyname.key  
140735534773128:error:02001002:system library:fopen:No such file or directory:/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-22/libressl/crypto/bio/bss\_file.c:255:fopen(‘keyname.key’, ‘r’)  
140735534773128:error:20074002:BIO routines:FILE\_CTRL:system lib:/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-22/libressl/crypto/bio/bss\_file.c:257:  
unable to load private key

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<div class="post-metadata">

**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/ionic-package-build-ios-error/128655/6 "2021-07-19T21:38:49Z")

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Closed on July 19, 2021, 9:38pm UTC