No config value at path "gcp"

I keep getting following error, how to solve? It’s a nodeMCU

C:\mos>mos gcp-iot-setup --gcp-project tcs-iot-proj3 --gcp-region europe-west1 -
-gcp-registry iot-registry
Using port COM6
Connecting to the device…
esp32 3C71BFAA66B4 running tcs-proj0
Error: /go/src/github.com/mongoose-os/mos/mos/dev/dev_conf.go:40: no config valu
e at path “gcp”
/go/src/github.com/mongoose-os/mos/mos/gcp/gcp.go:81: failed to get GCP config.
Make sure the firmware supports GCP
/go/src/github.com/mongoose-os/mos/mos/main.go:196: gcp-iot-setup failed

Do you have the gcp library in mos.yml?

Yes, I could solve the issue