Forticlient VPN: A JavaScript Error Occurred in the Main Process

[CoolKiwiBloke]

I have been successfully using the Forticlient VPN for some time now. Today I upgraded to the latest version and since then I have been receiving the following error. I have uninstalled, reinstalled, added the latest MS C++ redistributables and am still getting this error. Any suggestions?

[jbatcmb]

We are still seeing the Javascript errors on Version 7.0.7.0345

[devo123]

I faced the same issue. Took me 2 days to figure out what went wrong. After reading a lot of articles visual c++ was causing issue. So I installed 2015-2022 and now its working fine. Pasting the link to download visual c++ here. 

https://aka.ms/vs/17/release/vc_redist.x64.exe

[voiturefrancaise]

The error returned as if it hasn't been gone. Unfortunately the same error.

[FranFisc1]

One year later,
FortiClient VPN 7.2.1..
and I am still facing the same error !
I connected to the FortiGate WebVPN portal i.e.  https://vpn.acmecompany.xyz and clicked on "Launch FortiClient".
This starts the (already installed) FortiClient Executable on the PC with one argument:
(thanks to sysinternals for their process explorer ;)

"C:\Program Files\Fortinet\FortiClient\FortiClient.exe" "forticlient:///?hostname=vpn.acmecompany.xyz&"

Trying this on the cmd line in Windows,
I found that FortiClient.exe only starts up successfully if the command is executed in the directory "C:\Program Files\Fortinet\FortiClient".

If FortiClient exe is started from an other directory, the JS error above is displayed.

The argument where to connect to seems to be ignored in any case....

I can understand that the free FortiClient VPN is not TAC supported, so I cannot open an SR.
And I understand that FORTINET wants to sell their EMS and FC Licenses,
but I would appreciate a lot, if at least basic functionality
like launching the executable from a browser and initiating a connection to the hostname
would work with the free version... 

[GeoKot]

Its how @FranFisc1 writes. I have the same error after setting up the VPN Portal and also deploy the FortiClient VPN via intune. This is a basic functionality and should not be only supported or fixed if you have an EMS subscription.