In the 
setup, it recommends the latest version of gradle (currently 6.4).
Using the gradle 6.4 doesn't work with the 
. Specifically, gradle deprecated functionality that minecrell's vanillagradle uses.
Knowing this, it would be better to recommend a specific version of gradle (4.9 or 5.6.4 seems to work fine).
In the
setup, it recommends the latest version of gradle (currently 6.4).
Using the gradle 6.4 doesn't work with the
. Specifically, gradle deprecated functionality that minecrell's vanillagradle uses.
Knowing this, it would be better to recommend a specific version of gradle (4.9 or 5.6.4 seems to work fine).