Can't import dashboard in grafana

[ghost]

Hi,
I have this problem with importing a dashboard ( Id=5249 ) into my grafana. I'm using grafana 6.0.0, Prometheus 2.8.0 and Prometheus Exporter for Jira 1.0.21. All correctly installed. While importing json file or entering ID/url, I'm getting error "Unexpected token u in JSON at position 0".
Prometheus is added as "Data Source" and he is listening on port 9090.
Prometheus.yml contains following lines:
scrape_configs:

• job_name: 'jira'
  scheme: https # change to http if don't you have https
  metrics_path: '/jira/plugins/servlet/prometheus/metrics'
  static_configs:
  • targets: ['myhost:2990'] # Jira host and port you serve
    as recommended.
    What could be a problem?

[AndreyVMarkelov]

Hi. Did you use some secter token?

[ghost]

Hi,
no I don't use secret token.

[dsmorse]

There are multiple steps between installing the prometheus plugin and loading a dashboard into grafana.

1. have you confirmed that you can view the prometheus metrics at the end point in your JIRA instance?
2. have you confirmed that you can curl that URL remotely from your prometheus server to rule out networks and firewalls?
3. have you loaded the jira endpoint into prometheus as a data source (your snippet above)?
4. have you confirmed that the target is green in prometheus?
5. have you confirmed that you can query the metrics are query-able in prometheus?
   --- only at that point
6. can you query the metrics into grafana via the prometheus data source?
7. can you import a pre-saved dashboard and replace the varibles?

I hate to say it, but only step 1 is part of this project.