I'm trying to create a React app, I just installed Node.js but the command npx create-react-app . doesn't work for some reason. Here is a screen shot from cmd: variables

CodePudding user response：

Your COMSPEC variable is messed up.

• Press Win R
• Enter sysdm.cpl and click OK
• Go to "advanced" tab
• Click button "environment variables"
• If there is a ComSpec or COMSPEC entry in the top list: Delete it
• If there is a ComSpec or COMSPEC entry in the bottom list and it's not ending with cmd.exe: Change it to C:\Windows\system32\cmd.exe.
• Click OK
• Restart your computer

CodePudding user response：

You should add your app name you forgot that:

 npx create-react-app exercise

exercise: your app name