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Forticlient on Linux Javascript error

I'm on Debian, forticlient version amd64. When I try to start the application I get this error:

I have restarted my computer and it made an empty white window appear but nothing appeared. Closing and opening it after that gave the javascript error.


For others googling:

Uncaught Exception: TypeError [ERR_INVALID_CALLBACK]: Callback must be a function at maybeCallback (fs.js:129:9) at Object.writeFile (fs.js:1137:14) [...]

New Contributor

For anyone that finds this on google:

This is probably due to the fact that the systemd (root!) service of fortigate is not running.

systemctl unmask forticlient.service

systemctl enable forticlient.service

systemctl start forticlient.service


should fix it.


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