My iPhone is currently running 14.5.1, and copying the 14.5 folder fixed it (using Xcode 12.4 under Catalina/10.15.7). It looks like that DeviceSupport directory only has X.Y versions, not X.Y.Z. The next time running the app from Xcode still took a little extra time it said something about copying cache files to my phone I assume that's related to the 14.5 stuff I just added with the above instructions.Īlso, ferFrassia mentioned 14.5.1 vs. (Yes, I quit Xcode before copying, then started Xcode again.) After doing the same thing through the Finder, it worked.
I don't remember if it was a different error message than the unsupported iOS version, but it didn't work.
The latest beta version and previous versions of Xcode can be downloaded from the Downloads page. The Mac App Store will notify you when an update is available or you can have macOS update automatically as it becomes available. I used the command line the first time ( sudo cp -r …), and Xcode didn't like it. Downloading and updating Xcode The current release of Xcode is available as a free download from the Mac App Store. Robske_110 missed "Platforms" in the directory path: It's Xcode.app/Contents/Developer/Platforms/atform/DeviceSupport/14.5īe sure to use the Finder to copy the directory. Robske_110's response was very helpful, but two notes:
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