Troubleshooting
Code Runner does not appear after installing
Section titled “Code Runner does not appear after installing”After Effects only finds new extensions at launch — restart it, then check Window > Extensions. If it still is not there, see Installing ZXP Extensions.
I installed the update but only see one panel
Section titled “I installed the update but only see one panel”Restart After Effects. It registers extensions only at launch, so Code Runner 2, 3 and 4 appear on the next one. Picking Open Code Runner 2 from the panel’s flyout menu before that restart raises a notice saying the same thing.
Script buttons will not run
Section titled “Script buttons will not run”Script buttons need Allow Scripts to Write Files and Access Network turned on in Preferences > Scripting & Expressions, followed by an After Effects restart. Code Runner shows a card while this is blocking it.
The panel opens blank
Section titled “The panel opens blank”Open the panel’s flyout menu (the small menu at the panel’s top-right corner) and choose Refresh. If that does not bring it back, close and reopen the panel, then restart After Effects.
A button does nothing
Section titled “A button does nothing”- A menu command your version of After Effects does not have does nothing by design — the button is safe, just not applicable there.
- An expression or ease button needs a selection first: properties for expressions, keyframes for eases. A two-point ease works on a single selected keyframe; a multi-point ease needs two.
- A button carrying alternates runs whichever action is active, which is the one whose name and icon it is wearing. Long-press it to see the rest.
- On non-English versions of After Effects, a workspace or panel command can occasionally open the wrong one. Recreate the button and repick the command.
A script fails
Section titled “A script fails”The error card shows the message and the line number from your own code — Open at line jumps the editor there. A script that catches its own errors reports success, because Code Runner only sees what escapes.
”Your collection could not be read”
Section titled “”Your collection could not be read””Code Runner refuses to guess when the library file is damaged, and offers recovery instead: restore from its automatic rolling backups, restore one of your own backups, or rebuild the collection from your code files.
Still stuck?
Section titled “Still stuck?”Send details straight from the panel with Menu > Submit feedback, or see Contact.