Hello, Tried to upgrade Ignition version from 8.1.18 to 8.1.26. After upgrade I tried to open the designer and got error like this [image] Has anyone encountered an issue like this? How to solve this

Navigate to your users diectory, :\Users\svenugopal. Make a backup of the .ignition folder. Then delete the .ignition folder. Re-Open designer launcher and re-open the project.

Hello bschroeder, Thanks for your help. Still it is showing this error. I am attaching the launch error log Launch failed on step "DownloadPyLibStep" with error: java.lang.Exception: Unable to save pylib to C:\Users\svenugopal.ignition\cache\resources\pylib\58521b6a210a505966119c393901959b.zip a…

Is this when you are trying to upgrade designer or when you are trying to start a project from in designer? My main trick is what I wrote for these type of issues. Usually deleting the folder is the trick. Were you able to backup and DELETE the .ignition folder successfully? If not that may point …

Infact I was trying to upgrade from Version 8.1.18 to 8.1.26. Installation was successful. But after that when I tried to open the designer, it asked whether I need to upgrade to 1.1.26. I accepted that and it started installing the same. After installation during startup it was showing "downloading…

Unfortunately I'm out of ideas on this. Hopefully someone will chime in that has another idea or you may need to engage with support.

Anyways thanks for your support

So I would like to give an update on this. The issue was with my Antivirus. It was preventing from downloading the python lib when launching designer. It would be better if we disable the antivirus or allow this particular installation. Problem is solved

Awesome. What AntiVirus do you have? Just for my own personal knowledge.

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Error launching application after upgrade

Ignition

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