Proxy error: Could not proxy request /favicon.ico from localhost:3000 to http://localhost:3000

while running the official sonar web api example, GitHub - SonarSource/sonar-custom-plugin-example: Shows how to write a SonarQube plugin, the terminal hints Proxy error: Could not proxy request /favicon.ico from localhost:3000 to http://localhost:3000
After enter the command ‘npm start’ in terminal, the error occurred

The line 'const PROXY_URL = process.env.PROXY_URL || ‘http://localhost:3000’ ’ of file start.js in /scripts/ set the proxy url, how can i fix this proxy error?

Hi,

It’s not clear to me how you’re running SonarQube. Are you trying to build your plugin? Run tests?

 
Ann