Module 'csstype' not found in Plasmic Angular setup

Hey Guys, Mike here - i am an Angular developer trying to use Plasmic in a demo. I followed the steps for Angular setup for the project but getting this error

Error: …/…/node_modules/@plasmicapp/host/dist/element-types.d.ts:1:33 - error TS2307: Cannot find module ‘csstype’ or its corresponding type declarations.

any help would be great