Unable to build with jekyll-remote-theme

I’m trying to build locally alembic-jekyll-theme but I’m stuck with the installa of jekyll remote theme

Dependency Error: Yikes! It looks like you don't have jekyll-remote-theme or one of its dependencies installed. In order to use Jekyll as currently configured, you'll need to install this gem. The full error message from Ruby is: 'cannot load such file -- jekyll-remote-theme' If you run into trouble, you can find helpful resources at https://jekyllrb.com/help/! 
jekyll 3.8.2 | Error:  jekyll-remote-theme

Any help?

are you using bundler? did you do bundle install and then bundle execute jekyll serve? I don’t use bundler but I think that is what they are - that installs all the needed dependencies.

You might also be able to just do gem install jekyll-remote-theme though I am not so sure about that.