Encountering an issue in tsconfig while trying to change the module to ES201

After researching LitElement documentation, I updated my tsconfig.json file to reflect the following configuration:

  {   
    "compilerOptions": {
        "target": "ES2017",
        "module": "ES2017",
        "moduleResolution": "node",
        "experimentalDecorators": true
      },
    "include": [
        "src/*"
    ]
}

However, upon implementation, an error message appeared stating:

TS6046: Argument for '--module' option must be: 'none', 'commonjs', 'amd', 'system', 'umd', 'es6', 'es2015', 'esnext'.

javascripttypescriptwebpacklit-element

Answer №1

There seems to be an issue with the documentation for LitElement as discussed in this thread. The error message should provide some indication of what is going wrong. According to the information available at Typescript compiler options, the use of ES2017 is not supported by the module configuration. It is recommended to switch to either es2015 or esnext.

Answer №2

Could you please add the "lib" array to your compiler options as illustrated below? Also, make sure to replace all instances of es with es


{
    "compilerOptions": {
        "target": "es2017",
        "module": "es2017",
        "moduleResolution": "node",
        "experimentalDecorators": true,
        "lib": [
                  "es2017",
                  "dom"
                ]
      },
    "include": [
        "src/*"
    ]
}

I hope you find this information useful.

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