Hello!
I am trying to implement ChirpStack on Google Cloud Platform (GCP). I am following this excellent guide: https://www.chirpstack.io/guides/google-cloud-platform/
I am stuck with the installation of Network Server. I am using the US915 example. I have double-checked all the steps. After replacing the pertinent fields, I receive an error message when I try to execute chirpstack-network-server. I couldn’t find any interesting result or similar case on Google.
root@us915-vm:/etc/chirpstack-network-server# chirpstack-network-server
INFO[0000] starting ChirpStack Network Server band=US_902_ 928 docs="https://www.chirpstack.io/" net_id=000000 version=3.8.1
INFO[0000] disabling all channels
INFO[0000] enabling channels channels="[0 1 2 3 4 5 6 7 64]"
INFO[0000] storage: setting up storage module
INFO[0000] storage: setting up Redis connection pool
INFO[0000] storage: connecting to PostgreSQL
INFO[0000] storage: applying PostgreSQL data migrations
INFO[0000] storage: PostgreSQL data migrations applied count=0
INFO[0000] gateway/gcp_pub_sub: setting up client
INFO[0000] gateway/gcp_pub_sub: setup downlink topic topic=us915-gateway-commands
FATA[0000] gateway-backend setup failed: gateway/gcp_pub_sub: topic exists error: rpc error: code = PermissionDenied desc = User not authorized to perform this action.
Hopefully somebody with more experience could help me here.
With best regards
Sebastian