Radar plugin in kibana: Can't resolve 'ui/vis/vis_category'

[sdb97]

Hi Dear David

I am interested in using radar plugin in kibana. My kibana version is 6.6. I download kbn_radar-6.zip using following link and extract it in the kibana/plugins folder.

https://github.com/dlumbrer/kbn_radar/releases/download/6.3.X-4/kbn_radar-6.zip

Then, starting kibana failed with following message:

FATAL Error: Optimizations failure.

5120 modules

ERROR in ./plugins/kbn_radar/public/kbn_radar.js

Module not found: Error: Can't resolve 'ui/vis/vis_category' in 'F:\ELK_Windows\kibana-6.6.0-windows-x86_64\plugins\kbn_radar\public'

How about Kibana 6.5? Could you please release Radar plugin so that supports Kibana 6.5 and upper versions? Many thanks.
Any advice will be so appreciated