Ionic installs but won't 'ionic serve'

Hello.

I’m running on Windows 2012 Server. node, Ionic have installed okay now (it did take a long time to work, I was getting errors all over the place for some reason??)
I have permissions to the folders, and I’m not behind a proxy. When I hit the ‘ionic serve’, I was presented with this screen.

I have run npm install -g lodash
and
npm install -g lodash --save
cleaned npm,
and run npm install -g lodash._basetostring

these both download, and go into the Roaming/npm/node_modules folder (I can see them in the folder)
but I still receive this error

Any help is always greatly received.

Thank you

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