Error while adding task

[anomaly122]

Hello, I have questions.
When I export data using your library, I can't do that.

===================================
I installed follows.
Step1. Set grafana-data-exporter
1-1. Create api key in grafana (Viewer)
1-2. Download your library in local system
1-3. Extract tar and then modify config.json file
1-4. Run node Server - It work fine. When I access 8000 port I will see this message.
"Grafana-data-exporter server works"

Step2. simple-json-datasource
2-1. Install simple-json-datasource and then restart grafana server
2-2. Go to datasources/new page and then create SimpleJson type datasource

• backend url is :8000

Step3. grafana-data-exporter-panel
3-1. Download your library in my grafana plugins path
3-2. Extract tar and then restart grafana server

• I can see data-exporter-panel ui successfully.

Step4. Import your sample dashboard template
4-1. Copy your json template file
4-2. Import template to grafana graph

• I can see ui

===================================
After these process, I try to export data but I can't.

• Dashboard Setting : Back end_URL : localhost:8000

Error Messages

1. data panel : Cannot read property 'length' of undefined
2. Process panel : Request Error
3. When I export, I see the "error while adding task"

Sample Error in data panel. . .

TypeError: Cannot read property 'length' of undefined
at http://{domain}/public/build/app.dfabdd44b3be44288eac.js:22:557392
at Jt (http://{domain}/public/build/vendor.dfabdd44b3be44288eac.js:9:5512)
at Function.fr.filter (http://{domain}/public/build/vendor.dfabdd44b3be44288eac.js:9:50982)
at t.query (http://{domain}/public/build/app.dfabdd44b3be44288eac.js:22:557246)
at e.issueQueries (http://{domain}/public/build/app.dfabdd44b3be44288eac.js:22:485671)
at http://{domain}/public/build/app.dfabdd44b3be44288eac.js:22:872775
at http://{domain}/public/build/vendor.dfabdd44b3be44288eac.js:130:92198
at http://{domain}/public/build/vendor.dfabdd44b3be44288eac.js:130:92295
at l.$digest (http://{domain}/public/build/vendor.dfabdd44b3be44288eac.js:130:97589)
at http://{domain}/public/build/vendor.dfabdd44b3be44288eac.js:130:99404

[rozetko]

Hi @gem874,

Thank you for contributing the issue.

Please provide the following info:

• Which exporter version are you using?
• Which Grafana version are you using?
• Are there any errors in the exporter server?
• Which datasource are you trying to export data from? e.g. InfluxDB / Prometheus / etc