On windows for some reason when I run npm install it won\'t install devDependencies. AFAIK it should. If I run npm install --dev <
npm install
npm install --dev
Make sure your package.json is valid...
package.json
I had the following error...
npm WARN Invalid name: "blah blah blah"
and that, similarly, caused devDependencies not to be installed.
devDependencies
FYI, changing the package.json "name" to blah-blah-blah fixed it.
blah-blah-blah