Encountering an issue while trying to compile my Angular 6 project - an ERROR keeps

Upon initiating my project with ng serve, I encountered a troublesome error. Despite updating my TypeScript, the issue persisted.

Here is the detailed error message:

    ERROR in node_modules/@types/node/assert.d.ts(3,68): error TS1144: '{' or ';' expected.
    node_modules/@types/node/assert.d.ts(57,68): error TS1144: '{' or ';' expected.
    ...
    (Additional errors continue...)

Answer №1

It seems like there might be a compatibility issue between your TypeScript version and some of your @types packages. Let me guide you through the solution step by step:

  1. Open your package.json file and check the versions of TypeScript and your @types packages:
  "devDependencies": {
    // ...
    "@types/deep-freeze": "0.1.1",
    "@types/jasmine": "3.5.10",
    "@types/lodash.isequal": "4.5.5",
    "@types/lodash.mergewith": "4.6.6",
    "@types/lodash.remove": "4.7.6",
    "@types/lodash.some": "4.6.6",
    // ...
    "typescript": "2.9.2",
    // ...
  }
  1. For each of your @types packages, run the command

    npm dist-tags @types/<your-types-package-name>
    to see which TypeScript version is compatible with each package version.

  2. Update the versions of your @types packages in the package.json file accordingly.

If this solution doesn't work, consider updating TypeScript to a newer version!

Answer №2

If you are utilizing "typescript": "~3.1.6" within your package.json configuration, be sure to update the version of "@types/node" to "@types/node": "14.6.2" as well in order to resolve any issues that may arise.

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