Hi;
I have installed according to some installation articles, but I am getting an error in grafana as in the attachment. all services are running. Can you help resolve the error?
welcome to the 
forum, @ramazan
It looks like you imported a pre-configured dashboard, is that correct?
It is not uncommon for pre-built dashboard not to work perfectly with a user’s unique setup. I would investigate the variables section of that dashboard and see if you can find any issues. Or use the queries in that dashboard as examples, and try building your own that don’t use variables. Once you get a basic query working, you can then make them more complex.
Also what dashboard did you import? Some of them from the community are very old…
Hi;
Thank you.
Yes true. I am trying to use a ready made dashboard for vmware. I am using the 8159 coded dashboard.