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Nest.js: Unable to import

See original GitHub issue

Problem

Compilation fails when using tle.js with nest.js:

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: <redacted>/node_modules/tle.js/dist/tlejs.umd.js
require() of ES modules is not supported.
require() of <redacted>/node_modules/tle.js/dist/tlejs.umd.js from <redacted>/dist/services/spacecraft-data.service.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename tlejs.umd.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from <redacted>/node_modules/tle.js/package.json.

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1089:13)
    at Module.load (internal/modules/cjs/loader.js:937:32)
    at Function.Module._load (internal/modules/cjs/loader.js:778:12)
    at Module.require (internal/modules/cjs/loader.js:961:19)
    at require (internal/modules/cjs/helpers.js:92:18)
    at Object.<anonymous> (<redacted>/src/services/spacecraft-data.service.ts:5:1)
    at Module._compile (internal/modules/cjs/loader.js:1072:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)
    at Module.load (internal/modules/cjs/loader.js:937:32)
    at Function.Module._load (internal/modules/cjs/loader.js:778:12)

Workaround

Remove the "type": "module", line from the package.json

Solution

I don’t know (yet). Maybe remove the line and everything would be fine? Or does that cause other problems?

Issue Analytics

State:
Created 2 years ago
Comments:12 (8 by maintainers)

Top GitHub Comments

2reactions

theheckwrcommented, Dec 27, 2021

Okay, thanks for the info and the “temporary” solution. That’s way better than my workaround. I’ve implemented it and it works so far. Let’s hope they’ll implement it soon.

1reaction

theheckwrcommented, Dec 29, 2021

Okay, I tested it. It works so far. No errors and the functions I’m using are executing normally, as far as I see. Even with Nest.js. Thanks very much!

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