error TS2304: Cannot find name 'Map'.

[ctaggart]

C:\Users\camer\ts\TsAst [base-class ≡ +0 ~4 -0 !]> tsc
node_modules/tsutils/util/usage.d.ts(30,74): error TS2304: Cannot find name 'Map'.

c:\Users\camer\ts\TsAst\node_modules\tsutils\util\usage.d.ts

export declare function collectVariableUsage(sourceFile: ts.SourceFile): Map<ts.Identifier, VariableInfo>;

  "dependencies": {
    "@types/node": "^8.0.51",
    "tsutils": "^2.12.2",
    "typescript": "^2.6.1"
  },

[ajafff]

since TypeScript also uses Map internally, you need to run in an environment that supports at least ES6.
just add {"compilerOptions": {"lib": ["ES6"]} to your tsconfig.json to tell TypeScript to provide typings for ES6 features

[ctaggart]

Thank you.

[tlubitz]

Thanks, man, that helped!