ODK 2.0 server web-ui log in error: Internal Server Error 500

Hi all,

I’m trying to set up a local endpoint to test my ODK 2 survey build. I’ve followed the guide: https://docs.opendatakit.org/odk2/sync-endpoint/ step-by-step without making any custom changes.

I’ve added an user in the phpLDAPadmin console to “default_prefix site_admins”. When i try to log in to the server i get the error:
There was an unexpected error (type=Internal Server Error, status=500).
I/O error on GET request for “http://sync:8080/odktables/default/privilegesInfo”: sync: Temporary failure in name resolution; nested exception is java.net.UnknownHostException: sync: Temporary failure in name resolution

Any ideas what i could do to solve this problem?

I’m very inexperience in this field, so sorry if my questions seems trivial.

I hope you have solved the problem but if you’re still trying, see