Registration With Endpoints Server FAILED (App Engine Connected Android Project)

I am new to Android programming and Google App Engine. I followed the below documentation to run a sample app which registers my device: https://developers.google.com/eclipse/docs/

Solution 1:

I had a similar problem and solved it by setting

LOCAL_APP_ENGINE_SERVER_URL = "http://[myLocalIp]:8888"

where myLocalIp is your ipv4-address which you can find by opening cmd.exe from your start menu and writing ipconfig.

Make sure to edit the correct SERVER_URL string in CloudEndpointUtils.java. I think it uses LOCAL_APP_ENGINE_SERVER_URL_FOR_ANDROID by default.

For this to work i also had to change the run configurations for the backend project. In Eclipse: select the server project -> right click -> Run as -> Run Configurations. Select the Arguments pane and in Program Arguments, add --address=0.0.0.0 in front of the --port=8888.