I got a warning in Xcode 4.6.1/Mac OSX 10.8 when I try to open an Xib file which used to work well in Xcode 3.x/ Mac OSX 10.7
"The file "MQMPlugIn.xib" has a dependency on an Interface Builder 3 plug-in. Please choose "Upgrade" below to remove this dependency. Some changes to the document may be destructive and cannot be undone."
If I click on the Upgrade button, I get several compile errors on xib file.
Cocoa: "Color type user defined runtime attributes on OS X versions prior to 10.7" .
[ If I select cancel the Interface builder won't open ].
I tried to change the user defined runtime attributes[ on bevel button, and other widgets] - color type, and even removed the user defined run time attribute [color type] in IDentity inspector, still no luck. Also tried changing the .xib version to 4.6 using the file inspector. Request help to solve this issue.
Xcode 4.x stopped custom plugin support for xib. Our project had a custom plugin dependency. To solve this we have to click on the upgrade button, and then we have to replace all the custom controls [ which were part of the custom plugin ] with standard controls.