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How can i change app icon after creating the ipa file .

I am follow below steps

Rename the .ipa to .zip, and unzip the archive.
Inside should be a folder called "payload", and inside that folder should be your application archive.
Change the app icons file 
Re-zip the archive
Rename the .zip to .ipa
Re-sign the .ipa

But the ipa is not installed , It showing Modified (add or delete) file error . Can any one please help me

srinivas n
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  • Yes, It is not possible – Parth Pandya Dec 29 '15 at 09:14
  • Do you have the source code of the .ipa file in your xcode, if you have , then there is hope. – Kumar Utsav Dec 29 '15 at 09:45
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    This is possible and I do it regularly. The steps outlined above are correct. If the app isn't installing it is most likely a signing issue. Check the device logs when the install fails and it will tell you what the problem is. – respectTheCode Mar 12 '18 at 21:12
  • @respectTheCode are you able to modify the icons within Assets.car file? – Carla Camargo May 21 '19 at 13:43
  • @CarlaCamargo Yes The icons modified success, But the ipa file not installed in device – srinivas n May 30 '19 at 05:46
  • @srinivasn How have you modified the icons? – Carla Camargo Jun 03 '19 at 11:29
  • @CarlaCamargo The above process we are failed. Then we modified the icon files and created the IPA file through commands, for this we are using Xcode server and enterprise license 1. Change the icons first 2. Create ipa file using commands – srinivas n Jun 04 '19 at 07:17
  • I know how to change the icons outside de assets.car and create the ipa afterwards, my problem is change the icons inside de assets.car... – Carla Camargo Jun 05 '19 at 13:26
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    @CarlaCamargo look into this may be useful https://stackoverflow.com/questions/47382404/creating-assets-car-file-through-command-line-for-app-resigning, https://stackoverflow.com/questions/47915805/update-ios-11-app-icons-in-assets-car-post-build – srinivas n Jun 06 '19 at 06:08

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