indicator cant's intall

[jaya thilaka]

today Purchases indicator cant;s intall what's  site error?

[Sergey Golubev]

Forum on trading, automated trading systems and testing trading strategies

Invalid Argument: Signal Error at new build MT4

Sergey Golubev, 2019.09.25 18:18

But!
If I use Windows 8.1 so I do not have this error.

You can write to the service desk telling the your OS (Windows 10, or Windows 7, or any other), IE installed or not, and so on.

Because I do not have any error with Windows 8.1 for example ...

[Sergey Golubev]

and read this thread: https://www.mql5.com/en/forum/323043
if still error - write to the service desk.