Xcode: Error -> Build failed -> Please upgrade your Subversion client to use this working copy <p>I am using Xcode 4.2.1. and I have this problem running an existing application on the iOS simulator:</p> <pre><code>svn: The path '.' appears to be part of a Subversion 1.7 or greater working copy. Please upgrade your Subversion client to use this working copy. /Users/me/Library/Developer/Xcode/DerivedData/myproject-dxfzldckuqdmlrghowwkdrbgoigy/Build /Intermediates/myproject.build/Debug-iphonesimulator/MyProject.build/Script-9567AEA113C59633000AA291.sh: No Subversion revision found at /Users/me/Library/Developer/Xcode/DerivedData/myproject-dxfzldckuqdmlrghowwkdrbgoigy/Build/Intermediates/myproject.build/Debug-iphonesimulator/MyProject.build/Script-9567AEA113C59633000AA291.sh line 32. Building revision Command /bin/sh failed with exit code 1 </code></pre> <p>I have a Subversion server 1.7.1 installed and also on the client side I upgraded to 1.7.1. I did a <code>svn upgrade</code> and then I get this error in Xcode.</p> <p>If I repeat the <code>svn upgrade</code> on the terminal I get the message <code>Can't upgrade '...' as it is not a pre-1.7 working copy directory</code>.</p> <p>So what is wrong? How an I solve the problem?</p> <p>Best Regards Tim</p>