This error typically occurs when After Effects encounters a pseudo-effect (custom effect controls) or a Master Property
The After Effects error message "" typically indicates a conflict between the software and a specific script, third-party plugin, or a corrupted project property. This error often prevents users from opening a project entirely or pops up repeatedly during startup. Common Causes of the Error This error typically occurs when After Effects encounters
Go to File > Scripts > Update Legacy Expressions.jsx . This built-in Adobe script updates older expression syntax to be compatible with the newer JavaScript engine. 4. The "Clean Import" Method This built-in Adobe script updates older expression syntax
A corrupt or unsupported script loading automatically during startup will cause continuous crashes. Isolate the problematic script with this method: Close Adobe After Effects completely. Navigate to your application's script directory: Isolate the problematic script with this method: Close
Sometimes, an aggressive breakdown occurs when importing complex Adobe Illustrator files containing specialized fonts or overlapping path names, confusing After Effects' 3D or layout engine. How to Fix the Error: Step-by-Step Solutions