After Effects Error Asked To Create Unknown Property Of Type Fix -

If you don't need the effect, delete the missing effect layer and resave the project. Step 3: Purge Memory and Disk Cache

If you can tell me if the error happens upon opening the app or only opening a specific project , I can provide more targeted steps. asked to create unknown property of type - Adobe Community

Does the error message list a specific in quotes (like ADBE... )? Share public link If you don't need the effect, delete the

If the error started appearing after you imported a project from a different computer or an online source, reach out to the creator. They may know exactly what third-party effect, script, or step is required for the error not to occur.

: In rare cases, "Unknown Exception" errors are caused by missing or corrupt fonts that the script is trying to load for its UI. : In rare cases, "Unknown Exception" errors are

/Applications/Adobe After Effects (Your Version)/Scripts/ScriptUI Panels

The is a frustrating, workflow-halting warning that usually triggers when a project attempts to call an effect control, pseudo-effect, or script parameter that Adobe After Effects cannot identify. This issue often loops indefinitely, locking up your project timeline or causing the software to crash upon opening. : In rare cases

To reset preferences: Hold down Ctrl+Alt+Shift (Windows) or Cmd+Option+Shift (macOS) while starting After Effects. Summary Checklist Potential Cause File -> Dependencies -> Update Legacy Expressions Startup Error Move scripts from ScriptUI Panels folder Template Error Re-install third-party .jsx scripts Cannot Open File Import broken project into a new one

If the project file itself is corrupted or stuck in a loop, importing it as a piece of footage into a fresh project can bypass the launch error.