# \[IGN-4437\]Project Library Randomly Not Found **URL:** \ **Category:** Ignition\ **Tags:** perspective, ignition81\ **Created:** [December 8, 2022, 3:07pm UTC](https://forum.inductiveautomation.com/t/ign-4437-project-library-randomly-not-found/67387 "2022-12-08T15:07:20Z")\ **Posts on this page:** 1\ **Showing post:** 9
**Author:** ![Matthew.gaitan](https://avatars.discourse-cdn.com/v4/letter/m/59ef9b/32.png) [@Matthew.gaitan](https://forum.inductiveautomation.com/u/Matthew.gaitan)\ **Post date:** [January 11, 2023, 9:33pm UTC](https://forum.inductiveautomation.com/t/ign-4437-project-library-randomly-not-found/67387/9 "2023-01-11T21:33:17Z")
> [@\[IGN-4437\]Project Library Randomly Not Found](https://forum.inductiveautomation.com/t/project-library-randomly-not-found/67387): > > We've seen some instances in the past few months of our Perspective applications having trouble calling library functions when no changes have been made to the project, the logs will just begin having entries stating the scripting path isn't recognized. When this happens we have to open the project and re-save it and this fixes the issue, which means it shouldn't be an actual problem with anything in the library (e.g. syntax errors or actual changes applied to views or the libraries themselves). … > [@Project Library file suddenly not found?](https://forum.inductiveautomation.com/t/project-library-file-suddenly-not-found/48113): > > We experienced a strange error yesterday where all of a sudden our we received a overlay error in our production system. Upon investigating my team mate stated that there was a error where the system complained that it couldn’t find the “OEE class” in the Project Library? Nothing was changed in the system and no one had any Designer sessions opened at the time of the error. I had my team mate open the project up in the designer and just resave it. Miraculously that fixed the error and everything… A few of us have had this occur. I personally haven't seen it in a few months, so I actually thought it was fixed. You're on a newer version than I'm on though, so apparently it's still an issue --- _[View the full topic](https://forum.inductiveautomation.com/t/ign-4437-project-library-randomly-not-found/67387)._