Attempting to build an angular 7 application in visual studio and receiving an exception regarding the tsconfig.json lib version. Below is the current tsconfig.json { "compileOnSave": false, "compilerOptions": { "baseUrl": "./", "outDir": "./dist/out-tsc", "sourceMap": true, "declaration": false, "module": "es2015", "moduleResolution": "node", "emitDecoratorMetadata": true, "experimentalDecorators": true, "importHelpers": true, "target": "es5", "typeRoots": [ "node_modules/@types" ], "lib": [ "es2018", "dom" ] } } Build Error Severity Code Description Project File Line Suppression State Error Build:Argument for '--lib' option must be: 'es5', 'es6', 'es2015', 'es7', 'es2016', 'es2017', 'dom', 'dom.iterable', 'webworker', 'scripthost', 'es2015.core', 'es2015.collection', 'es2015.generator', 'es2015.iterable', 'es2015.promise', 'es2015.proxy', 'es2015.reflect', 'es2015.symbol', 'es2015.symbol.wellknown', 'es2016.array.include', 'es2017.object', 'es2017.sharedmemory', 'es2017.string' DocumentLibraryWeb C:\Users\Tim\Source\Repos\project-sparkle\Athena\DocumentLibraryWeb\tsc Continue reading...