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XF 1.4 Error installing addons

Brogan

XenForo moderator
Staff member
#2
Run a file health check in the ACP and confirm all files are as expected.

You could also try extracting that single file from a fresh .zip and uploading it again.
 

Mike

XenForo developer
Staff member
#3
This might also be a corrupt style where a value changed format unexpectedly. The particular problematic style property would need to be reverted. I would recommend exporting your style (to back it up) and reverting properties one by one until you can get past this error.