There is no file with URL 'IWConvertedForms .cvt' in this Web.System.IO.DirectoryNotFoundException: There is no file with URL 'IWConvertedForms/

A very annoying error for sure. Easily resolved by deactivating and reactivating the feature "IPFSWebFeatures" found %Program Files%/%Common Files%/microsoft shared/web server extensions/12/Template/Features

Use the following commands:

stsadm -o deactivatefeature -filename IPFSWebFeatures\feature.xml -force -url

stsadm -o activatefeature -filename IPFSWebFeatures\feature.xml -force -url