'fortls' could not be spawned

I’m running ATOM ver. 1.53.0 on a Mac Pro (2019) under Mac OS X Big Sur ver. 11.1. When I start up ATOM, I get the message:

‘fortls’ could not be spawned. Is it installed and on your path? If so please open an issue on the package spawning the process.

The Fortran Language Server (fortls) is installed in my Anaconda Python distribution in the ~/opt/Anaconda3/bin subdirectory. This subdirectory is in my PATH, so I don’t understand why ATOM can’t spawn it.

Please advise.

Sam Dupree.