After some months of working with my Lightroom it want to be opened - assertion failed!
this post - "Assertion failed" update error in Lightroom | Windows - didn't help. reinstallation didn't helo
what can i do??
Please use the Creative Cloud cleaner tool to remove Lightroom and then reinstall it. See this article for instructions Use the Creative Cloud Cleaner Tool to solve installation problems
Let us know if that helps.
thank you for your help, but lightroom still doesn't work..nothing helps
Sorry about that, I also forgot to ask which version of Lightroom are you using?