Throw new error("callback(): the callback was already called.");

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When I try to run my angular project using "npm start" the following error is generated.

Terminal

 Generating browser application bundles (phase: building)...D:\Evesys\Ticketing\Lamda\NewV\BMSDesk_CLI\BMSDesk_CLI_Web\node_modules\loader-runner\lib\LoaderRunner.js:106
                        throw new Error("callback(): The callback was already called.");
                              ^

Error: callback(): The callback was already called.
    at context.callback (D:\Evesys\Ticketing\node_modules\loader-runner\lib\LoaderRunner.js:106:10)
    at D:\Evesys\Ticketing\node_modules\@ngtools\webpack\src\loader.js:100:9
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

What I have tried:

I have tried to delete the "node modules" folder and reinstall npm "npm install" but it is not resolved.

Posted 16-Jan-23 5:58am

Soft009

Updated 16-Jan-23 22:06pm

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Andre Oosthuizen · Answer 1 · 2023-01-16T22:06:00

There seems to be multiple solutions online -

1. Update all packages

npm install -g npm-check-updates
ncu -u
npm install

2. Use a different terminal or ensure your current terminal is updated. Some reckon Powershell 7 did it or going back to cmd over git bash also did the trick.

Have a look at THIS LINK from Stack Overflow for a possible solution.