When viewing help documentation in Xcode 4.2 (iOS SDK 5) we get these error messages:

"index.html" is locked for editing and you may not be able to save your changes. Do you want to unlock it?
The file "index.html" could not be unlocked. The file is a remote resource. Try making a local copy.

How can we view online help?


Very simple but effective solution:

  1. Open Xcode menu > Preferences...
  2. Click Downloads category
  3. Click Documentation tab
  4. Select "iOS 5.0 Library"
  5. Click Check and Install Now

This will download the documentation (about 360 MB) and solve the issue.


Updating to Xcode 4.2.1 will fix this problem

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