Typescript: Unexpected token import

Question

Just started working with typescript. Unfortunately when I try to build for production it fails.

Firstly I run

tsc

This passes without any error, but when I try to run the build file I get import errors

node build/index.js

The error I get is below:

[0] (function (exports, require, module, __filename, __dirname) { import {
[0]                                                               ^^^^^^
[0]
[0] SyntaxError: Unexpected token import
[0]     at createScript (vm.js:80:10)
[0]     at Object.runInThisContext (vm.js:139:10)

Below is my tsconfig

{
    "include": [
        "src/**/*"
    ],
    "exclude": [
        "node_modules",
        "**/*.spec.ts"
    ],
   "compilerOptions": {
        "lib": [
            "es5",
            "es6",
        ],
        "pretty": true,
        "target": "es5",
        "module": "commonjs",
        "outDir": "./build",
        "moduleResolution": "node",
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true,
        "allowSyntheticDefaultImports": true,
        "sourceMap": true
   }
}

I am using node v8.9.3

make target to es6

gokcand
– gokcand

2018-03-10 14:08:09 +00:00
Commented Mar 10, 2018 at 14:08 — gokcand
– gokcand, Commented Mar 10, 2018 at 14:08
@gokcand it is the same issue when I set target to es6

George
– George

2018-03-10 14:38:09 +00:00
Commented Mar 10, 2018 at 14:38 — George
– George, Commented Mar 10, 2018 at 14:38
I have just realised that the issue is with typeorm

George
– George

2018-03-10 16:49:56 +00:00
Commented Mar 10, 2018 at 16:49 — George
– George, Commented Mar 10, 2018 at 16:49

bogomya · Accepted Answer · 2020-01-09 16:32:10Z

11

If you use TypeORM there can be a problem with your ormconfig. Your configuration file probably contains path like src/entities/*.ts in the entity section. So it causes requiring *.ts files from your src folder, not from dist folder.

edited Jan 9, 2020 at 16:32

answered Oct 12, 2018 at 18:40

bogomya

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Comments

Steven Spungin · Accepted Answer · 2018-11-19 15:15:09Z

5

When working with NodeJs, your tsconfig.json should look like this:

{
    "include": [
        "src/**/*"
    ],
    "exclude": [
        "node_modules",
        "**/*.spec.ts"
    ],
   "compilerOptions": {
        "lib": ["es6"],        // No need for "es5" if you have "es6"
        "types": ["node"],      // When you code for nodejs
        "target": "es6",       // NodeJs v8.9.3 supports most of the es6 features
        "pretty": true,
        "module": "commonjs",
        "outDir": "./build",
        "moduleResolution": "node",
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true,
        "allowSyntheticDefaultImports": true,
        "sourceMap": true
   }
}

edited Nov 19, 2018 at 15:15

Steven Spungin

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answered Mar 10, 2018 at 17:21

gilamran

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