ERROR: for backendapp_api_1 Cannot start service api: driver failed programming external connectivity on endpoint backendapp_api_1: Error starting userland proxy: Bind for 127.0.0.1:9229 failed: port is already allocated

[adamchenwei]

when I did docker-compose up inside the app root directory. this is what I got

Any idea why is this happening?
*Note: I removed all containers

[koistya]

You can try commenting out these two lines:

https://github.com/kriasoft/nodejs-api-starter/blob/462df55/docker-compose.yml#L30-L31

They are only used when you launch the app in debug (inspect) mode. It seems like some other app was already launched on this port.