Does not start if watched folder does not exist

[agirorn]

When src folder does not exisit I get this output and yardman dose not start watching the other folders

yarn run v1.17.3
$ yardman package.json src bin spec 'yarn dev:exec'

Expected output

yarn run v1.17.3
$ yardman package.json src bin spec 'yarn dev:exec'
Error: Can't watch "src" no suche file or folder
.... stack trace

And exit with the exit code of 1