How to solve the problem of Unexpected end of JSON input when using Vue CLI to create a project?

When using Vue CLI to create a project, you sometimes encounter an Unexpected end of JSON input error. This problem is usually caused by an incomplete json file when npm downloads dependencies. Here are several ways to solve this problem.

Method 1: Clear npm cache
Enter the following command on the command line to clear npm's cache:

npm cache clean --force

After clearing, try creating the project again.

Method 2: Update npm package
Enter the following command on the command line to update the npm package:

npm install -g npm

After the update is completed, try creating the project again.

Method 3: Use yarn
yarn is a package management tool that replaces npm. Its download speed is faster and incomplete json files will not appear, which can avoid this problem.

If yarn has not been installed, you can enter the following command on the command line to install it:

npm install -g yarn

After the installation is complete, you can use the following command to create the project:

yarn create vue-app <project-name>

Above Three methods can generally help you solve the Unexpected end of JSON input problem. If it still cannot be solved, you can consider updating node.js or reinstalling npm or yarn.

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