npm error Cannot find module '@vuepress\core\node_m

It is usually caused by missing dependent packages or incompatible versions of dependent packages. You can try the following steps to resolve this issue:

1. Make sure your project's dependency packages are up to date. You can run npm updatethe command to update the dependency packages.

2. If you still have problems after updating the dependent packages, you can try deleting node_modulesthe folder and re-running npm installthe command to reinstall the dependent packages.

3. If none of the above steps resolve the issue, you can try clearing the npm cache and running npm installthe command again. You can clear the npm cache using the following command:

   npm cache clean --force
   

4. If the problem still cannot be solved, it may be due to incompatible versions of dependent packages. You can try to adjust the versions of relevant dependency packages, or check the project's documentation or community to see if other users have reported similar problems and how to solve them.