Hi All,
I have recently upgraded my Silicon Mac Laptop from MacOS 15.3 (Sequoia) to MacOS 26 (Tahoe). Since existing Xcode 16.2 is not compatible with MacOS 26, i installed Xcode 26.0.1 but after the successful installaton the application is not working and quits after the erorr dialog "Loading a Plugin Failed." (Screenshot attached). I tried resatring/reinstalling the Xcode 26.0.1 but no luck.
To narrow down the issue i installed the same Xcode 26.0.1 in another Silicon Mac laptop with MacOS 26(Tahoe) where no previous Xcode was installed and it went well and working as expected.
With my assumption Xcode 26.0.1 breaks when the device is upgraded from sequoia to Tahoe due to some conflicting old Xcode settings/files which may not be compatible with Xcode 26 or Tahoe but i am not sure. I followed some old articles as below from the forum and nothing worked for me so far.
https://developer.apple.com/forums/thread/660860 https://developer.apple.com/forums/thread/719810 https://developer.apple.com/forums/thread/759396
Can some one shed a light on this to resolve this issue?
Thanks.