Jekyll serve -w Issue

Question

I am using the jekyll with git-hub-pages on Win7, however no matter what I do the

jekyll serve --watch or
jekyll serve -w

won't start the server (the jekyll serve is working fine). the produced error has something to do with

custom_require.rb:36 - cannot load such a file --wdm 

How can I fix it?

Answer 1

As shown in the error message, wdm is not found.

First, update your gems

gem update

Then, manually install wdm

gem install wdm