After the latest Syncthing update to v2.0.14-1 Syncthing now throws an error and fails to run.
I tried reinstalling the previous version but this didn’t help.
Mac OS version is 10.15.8 on a Late 2012 Mac Mini.
I got an error message after the initial upgrade but since I clean installed Syncthing latest version I’m getting nothing. The process is running but nothing works. Also can’t open http://127.0.0.1:8384/
The last Go version to officially support 10.15 was Go 1.22, and the latest Syncthing version built with that was v1.27.12 from September 2024. You might want to find and download that, disable auto upgrades.