Editor shows error on a valid TypeScript dynamic import statement

[gozzoo]

• VSCode Version: 1.32.3
• OS Version: Win 10 32bit

Steps to Reproduce:

Here is the actuall error message:

Dynamic import is only supported when '--module' flag is 'commonjs' or 'esNext'.ts(1323)

This is the relevant tsconfig.json (in the same directory with the source file)

{
  "extends": "../tsconfig.json",
  "compilerOptions": {
    "outDir": "../out-tsc",
    "module": "commonjs",
  }
}

What is strange is that there are no errors when I'm comiling the file with tsc.

C:\work\project>npm run tsc:server

> project@0.10.0 tsc:server C:\work\project
> tsc -p server/tsconfig.server.json

[mjbvz]

Can you check if that ts file is part of the correct project:

1. Open the file
2. Run the TypeScript go to project configuration command

Does this open the correct tsconfig.json?

[gozzoo]

Does this open the correct tsconfig.json?

No, it opens the one in the root folder of my project. I have a second one in the folder with my source files, which extneds the one in the root folder, but for some reason Code ignores it.

[mjbvz]

Can you please share the tsconfigs along with their names?

[gozzoo]

If / is the root of my project

/tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "module": "es2015",
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "target": "es2015",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": ["es2015", "dom"]
  }
}

/server/tsconfig.server.json

{
  "extends": "../tsconfig.json",
  "compilerOptions": {
    "outDir": "../out-tsc",
    "module": "commonjs",
  }
}

The file I'm getting error on is in /server directory

[mjbvz]

We'll always try to use files called tsconfig.json as the project definition, not other variants of that file name like tsconfig.server.json

You should either rename tsconfig.server.json to tsconfig.json (also renaming the old tsconfig.json to tsconfig.base.json), or change the default module value in the existing tsconfig.json and create a new derived tsconfig for whoever needs to use "module": "es2015"