Module build failed: Error: Node Sass version 6.0.0 is incompatible with ^4.0.0

When executing the named NPM run dev to start the front-end project, the following error is reported

Module build failed: Error: Node Sass version 6.0.0 is incompatible with ^4.0.0.

From the prompt, I downloaded the latest dependency. The current version is incompatible. Later, I checked the relevant documents, which is really caused by the high version;

The simple way is to find the appropriate version and install the specified version (try it several times if you don’t know the version)

The processing steps are as follows:

#uninstall
npm uninstall node-sass

#install with the version
npm install [email protected] --save-dev

Run NPM run dev again

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