Xcode-beta 16 - Can't start app. "Loading a plug-in failed"

Question

Created 5d

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When I download and install Xcode-beta 16 I get the following error with the app not opening. Xcode v15.4 opens fine on an Apple M2 Max running Sonoma 14.5.

"Loading a plug-in failed. The plug-in or one of its prerequisite plug-ins may be missing or damaged and may need to be reinstalled.".

Screenshot 2024-07-11 at 1.42.37 PM.png

Anyone know how to resolve? I am trying to experience Timelines in Reality Composer Pro and need 16 beta+ to try it.

Answered by Developer Tools Engineer in 795039022

This is a known issue. Check out the Xcode 16 beta 3 Release Notes.

Xcode will fail to launch for some users. Users who have not installed Xcode 16 beta or Xcode 16 beta 2 will see a “Loading a plug-in failed” alert. (131066390)
Workaround: Use xcode-select -s $PATH to choose Xcode 16 beta 3. Then run xcodebuild -runFirstLaunch. Then Xcode will be able to launch.

Let us know if that doesn't resolve the issue for you.

Boost

Answer 1

Developer Tools Engineer OP

Apple

4d

Accepted Answer

Recommended

This is a known issue. Check out the Xcode 16 beta 3 Release Notes.

Xcode will fail to launch for some users. Users who have not installed Xcode 16 beta or Xcode 16 beta 2 will see a “Loading a plug-in failed” alert. (131066390)
Workaround: Use xcode-select -s $PATH to choose Xcode 16 beta 3. Then run xcodebuild -runFirstLaunch. Then Xcode will be able to launch.

Let us know if that doesn't resolve the issue for you.

16

Answer 2

delucasso OP

2d

That solution worked.

At terminal execute:

/code sudo xcode-select -s '/Applications/Xcode-beta.app'

then

sudo xcodebuild -runFirstLaunch

10