node_modules/angular2/src/core/change_detection/parser/locals.d.ts(3,14): error TS2304: Cannot find name 'Map'. node_modules/angular2/src/core/change_detection/parser/locals.d.ts(4,42): error TS2304: Cannot find name 'Map'. node_modules/angular2/src/core/facade/collection.d.ts(1,25): error TS2304: Cannot find name 'MapConstructor'. node_modules/angular2/src/core/facade/collection.d.ts(2,25): error