Sublime text cannot find imported node modules

Sublime Text 3 underlines all of my imports, giving me the error - any ideas?

Cannot find module....

tsconfig:

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "jsx": "react-native",
    "lib": ["es6"],
    "module": "es6",
    "moduleResolution": "node",
    "noEmit": true,
    "noImplicitAny": true,
    "target": "es6"
  },
  "jsRules": {"no-empty": true},
  "exclude": ["node_modules"]
}