I've read: How to setup Material-UI for React with Typescript?
typings install dt~material-ui --global --save
ERROR in ./source/scripts/components/app.tsx
(4,20): error TS2307: Cannot find module 'material-ui/AppBar'.
Every module must have type declarations. If you really don't want to install them then one you can write your own and use the
any keyword to skip type checking.