"ts-node": "1.2.1", "tslint": "^4.3.0", "typescript": "^2.6.2" }, "main": "index.js" } yarn manifest: No manifest Lockfile: # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY. # yarn lockfile v1 "@angular-devkit/build-optimizer@~0.0.31": ...