Internal server error: Failed to resolve import "@/views/errors/404.vue" from "src\router\index.ts". Does the file exist?

This error message is indicating that there is an issue with the import statement in the "src\router\index.ts" file. The import statement is trying to import a file located at "@/views/errors/404.vue", but the file cannot be found or resolved.

To resolve this issue, you should check the file path and make sure that the file actually exists in the specified location. You should also check if the file path is correct and consistent with the file structure of your project.

If the file exists and the path is correct, you may need to check your project settings and make sure that the path alias (represented by the "@" symbol) is correctly set up. This can be done in the "vue.config.js" file or in the "tsconfig.json" file depending on your project setup.

Once you have resolved the issue with the import statement, the internal server error should be resolved and you should be able to run your project without any issues.