JonahQuark

I've found similar issues installing on FreeBSD 12.3. The destination used doesn't match FreeBSD layout, it should be within the /usr/local/ directory tree. The install command behaviour/parameters are different and...

These install issues are resolved on FreeBSD by switching to the newer cmake build process.

Alternative is to use the command line option as indicated in the error message. Open settings (on the right side, toward the bottom) Switch to syncthing tab Open advanced section...