Hi guys, Got an issue where i accidently tried to upgrade an addon which must have been for 1.2 via @Chris Deeming 's addon installer. When it gets to rebuilding the templates, i come across this error : An error occurred or the request was stopped. and then to a page that says : Error Line 3: Unknown tag: callback This issue has been documented in the following thread: http://xenforo.com/community/threads/xenforo-1-1-1-2-cache-rebuild-compatibily.53714/ I have tried to disable all addons and then tried to rebuild the templates and so forth but i still come across that issue. It seems me that the offending code must be in the cache or something...is there anything i can do to fix this up so i can build the templates properly? As it is right now i am seeing: - TMS - modifications not being applied and rebuild needed. - Widget Framework showing blank screen..and despite the widgets showing up the screen to do anything is blank. - Unable to rebuild templates..so adding any addons or upgrading is impossible. The issue does not leave a error in the server logs. Any help would be greatly appreciated!