Hi @abhinavbalooni thanks, I still want to know if I go to the "edit preferences" page and do some changes, I want to do some testing so how can I only influence the development environment (I mean report suite) not impact prod env. 

Thanks @ayushmishra07  this is helpful and more clear.one more question below:some components' resoureType is resourceSuperType, and they are come from core/wcm/components/..... <?xml version="1.0" encoding="UTF-8"?> <jcr:root xmlns:sling="http://sling.apache.org/jcr/sling/1.0" xmlns:cq="http://www....

Thanks @ayushmishra07  but this document is really too hard to read to find something there, any other document can use for development, the best guide book should be : if I want to know how to use for example: <column>it shouldshow me all the info of this tagand show me any properties can of this t...

I have resolved this issue, it caused by my template does not have any page policies, but the AEM Sync extension still does not work, is it a bug that can not be fixed? I am not sure, will keep an eye on it, anyway thanks.

this doesn't resolve my issue, I am considering if it caused by the AEM version or npm-run-all version?

Hi @nika-ch I meet the same issue when I try to execute npm run watch command, and no new files generated in dist folder or clientlib-site folder, did you resolve the issue??

thanks @MayurSatav this command works for me that can kill the port, but this command bring me another problem, my firefox browser will be forced out when I execute this command.