Error with TypeScript Compiler in Angular 2

Currently, I am facing an issue while trying to run tsc in my Angular 2 application directory. The error message I receive is:

Error TS5023: Unknown compiler option 'moduleResolution'.

This issue seems to be hindering the startup process, as tsc is linked to the npm start script. My codebase is based on the Angular 2 quickstart template. Despite numerous attempts and research, I have been unable to resolve this issue. Any help or guidance would be greatly appreciated.

UPDATES I have included my tsconfig.json configuration below. Upon investigation, I discovered that my tsc version was outdated (1.5.3). To address this, I executed the command npm install -g typescript to update the global tsc version. However, even after updating, the same error persisted when running tsc in the directory. In order to address this, I ran npm install typescript within the project directory. Could this discrepancy be due to an older version overriding the globally installed one?

tsconfig.json

{
  "compilerOptions": {
   "target": "es5",
   "module": "commonjs",
   "moduleResolution": "node",
   "sourceMap": true,
   "emitDecoratorMetadata": true,
   "experimentalDecorators": true,
   "removeComments": false,
   "noImplicitAny": false
  }
}

Answer №1

Encountered a similar problem on my testing environment, but updating TypeScript to V2.21 resolved the issue.

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