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A typescript compile error occurs when nuxt.config.ts has changed in development mode if noImplicitAny enabled.

See original GitHub issue

Version

v2.6.3

Reproduction link

https://github.com/SegaraRai/nuxt-ts-issue-multiregister

Steps to reproduce

clone the repository
npm install
npm run dev
make some changes to nuxt.config.ts after first compilation finished
- this will have nuxt rebuild whole app

What is expected ?

work with no error

What is actually happening?

A typescript compile error occurs.

 ERROR  ⨯ Unable to compile TypeScript:                                                                                  12:43:28
nuxt.config.ts:2:5 - error TS7022: '__importDefault' implicitly has type 'any' because it does not have a type annotation and is referenced directly or indirectly in its own initializer.

2 var __importDefault = (this && this.__importDefault) || function (mod) {
      ~~~~~~~~~~~~~~~
nuxt.config.ts:2:67 - error TS7006: Parameter 'mod' implicitly has an 'any' type.

2 var __importDefault = (this && this.__importDefault) || function (mod) {
                                                                    ~~~
nuxt.config.ts:5:5 - error TS7022: '__importStar' implicitly has type 'any' because it does not have a type annotation and is referenced directly or indirectly in its own initializer.

…

Additional comments?

The cause of this issue is that registerTsNode is called more than once.
Because of this, ts-node tries compiling already transpiled .ts code and noImplicitAny error occurs.
registerTsNode is called everytime in _startDev via detectTypeScript and getNuxtConfig.

<div align="right">_{This bug report is available on Nuxt community (#c9133)}</div>

Issue Analytics

State:
Created 4 years ago
Comments:5

Top GitHub Comments

1reaction

kevinmarreccommented, May 11, 2019

@SegaraRai I fixed the double registration and tested it on your repository, it fixes your issue 😃 Fix can be found here : https://github.com/nuxt/nuxt.js/pull/5699 and will be shipped for next release very soon.

1reaction

kevinmarreccommented, May 11, 2019

@SegaraRai Alright, we had a guard to prevent double subscribtion but with some last refactors it seems there isn’t one anymore.

I’m gonna look if we can prevent it again and hopefully it would fix your problem.

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