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typescriptgulpclass-validatorgulp-typescript
Ole
Ole

Reputation: 46960

TS2307: Cannot find module 'class-validator'

I'm attempting to use the class-validator module in a typescript project. However when I compile typescript issues the following warning:

src/main/ts/domain/Order.ts(1,48): error TS2307: Cannot find module 'class-validator'.

The line it is complaining about looks like this:

  import { IsInt, IsNotEmpty, IsDate, Min } from "class-validator";

I have gulp setup like this:

    var gulp = require('gulp');
    var ts = require('gulp-typescript');
    var tsProject = ts.createProject("tsconfig.json");

    gulp.task('default', function() {
      return tsProject.src()
        .pipe(tsProject())
        .js.pipe(gulp.dest("target/main/js"));
    });

And my tsconfig.json looks like this:

    {
        "files": [
            "src/main/ts/**/*.ts"
        ],
        "compilerOptions": {
            "experimentalDecorators": true,
            "noImplicitAny": true,
            "target": "es6"
        }
    }

Thoughts?

Upvotes: 4

Views: 26553

Answers (5)

AL Mahmud
AL Mahmud

Reputation: 123

You need to install call-validator and class-transformer packages

npm i --save class-validator class-transformer

Upvotes: 2

Nandini Ashok Tuptewar
Nandini Ashok Tuptewar

Reputation: 324

You need ti install class-validator dependency , use this commond:

npm install class-validator

Upvotes: 3

Fazwelington
Fazwelington

Reputation: 190

This worked for me: yarn add graphql class-validator type-graphql

Source: https://github.com/MichalLytek/type-graphql/issues/625#issuecomment-626368051

Upvotes: 6

acedeywin
acedeywin

Reputation: 49

You need to install typescript types for validator in addition to installing class-validator.

That is npm install @types/validator

Upvotes: 2

Saravana
Saravana

Reputation: 40594

Set "moduleResolution": "node" in your tsconfig.json:

{
  "compilerOptions": {
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "noImplicitAny": true,
    "target": "es6"
  }
}

You can find more info on how TypeScript resolves your imported modules here: https://www.typescriptlang.org/docs/handbook/module-resolution.html#node

Upvotes: 14

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