/javascripts/phonegap..js: No such file or directory

Since moving to XCode4, I have been getting errors like:
    * /VERSION: No such file or directory
    * cp: /javascripts/phonegap..js: No such file or directory
    * cp: /javascripts/phonegap..min.js: No such file or directory
    * error: /VERSION: No such file or directory
for projects that were working under XCode3.
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Open XCodes Preferences, and navigate to Source Trees. If there is no PhoneGapLib entry there, try adding a new setting with the following values:

Setting Name: PHONEGAPLIB Display Name: Phone Gap Lib Path: /Users//Documents/PhoneGapLib

Note that the path should be to the location of your PhoneGapLib folder, and that it may not be in your documents folder, depending on how you installed PhoneGap.