Problem with build dev kibana plugin in 7.8

Hi
I want to build an external kibana plugin. I create plugin with node scripts/generate_plugin my_plugin_name then in the plugin directory yarn build
Its work on 7.6 and create build folder with zip file in a few seconds but in 7.8 that command try to build whole kibana in a few minutes.
how can i build my plugin in kibana 7.8?
is it possible to build whole kibana with external plugin?
@flash1293

Please don't ping people that aren't involved in your thread like that :slight_smile:

Check this may help
There are some file missed that need to be added manually like packahe.json & .kibana-plugin-helpers.json