CODEWITHSUNDEEP
javascriptnode.jstypescriptgulpvisual-studio-code
Rhushikesh
Rhushikesh

Reputation: 3700

Import module in typescript file gives error "cannot compile modules unless the '--module' flag is provided"

I am trying to import globally install gulp module, but I am getting error "cannot compile modules unless the '--module' flag is provided" in visual studio code.

Where to set this --module flag? enter image description here

Upvotes: 2

Views: 2986

Answers (2)

HMR
HMR

Reputation: 39320

I ran into a situation where the compiler output does not indicate an error but VS Code does.

Having the following tsconfig.json:

{
    "compilerOptions": {
        "target": "ES5",
        "watch": true,
        "module": "amd",
        "removeComments": true,
        "outDir": "."
    },
"files": [
        "Filter",
        "util.ts"
        ]
}

The compiler had no errors and would compile both Filter.ts and util.ts but because the tsconfig.json did not have the .ts extension in Filter; when opening util.ts it would underline the entire file contents in red with the "cannot compile modules unless the '--module' flag is provided"

Fixed it by adding the .ts at the end.

After changing the tsconfig.json I reloaded ctrl + p => >Reload Window

Upvotes: 1

Brocco
Brocco

Reputation: 65033

Open up your tsconfig.json file and make sure you have module set

{
  "compilerOptions": {
    "module": "commonjs"
  }
}

The list of possible values for module are:

  • commonjs
  • amd
  • umd
  • system

NOTE if you already have module set, you might need to reload the editor via the command pallet

Also of note --module is in reference to the command-line argument prior to the introduction of tsconfig.json where it is just named module

Upvotes: 5

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