ENOENT: no such file or directory - issues with node and yarn

I am having major issues trying to run yarn.

I've tried npm install npm install yarn npm install -g yarn

npm clear cache

λ yarn dev
fs.js:641
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
                 ^

Error: ENOENT: no such file or directory, open 'C:\Users\Rob\AppData\Roaming\npm\node_modules\yarn\node_modules\chalk\node_modules\escape-string-regexp\index.js'

via The Old County