Makefile:13: recipe for target 'docker' failed

[natanzi]

Dear team,
In the RANsim cloning I faced the below error, is there any idea?

seyed@instance-sdran1:~/sdran-in-a-box/ransim-api-demo$ cat go.mod
module github.com/RIMEDO-Labs/ransim-api-demo

go 1.16

require (
github.com/gin-contrib/cors v1.3.1
github.com/gin-gonic/gin v1.8.1
github.com/onosproject/onos-api/go v0.9.18
github.com/onosproject/onos-lib-go v0.8.16
google.golang.org/grpc v1.41.0
)
seyed@instance-sdran1:/sdran-in-a-box/ransim-api-demo$ go mod tidy
seyed@instance-sdran1:/sdran-in-a-box/ransim-api-demo$ make dev
helm uninstall -n riab ransim-api-demo
Error: uninstall: Release not loaded: ransim-api-demo: release: not found
Makefile:21: recipe for target 'delete-xapp' failed
make: [delete-xapp] Error 1 (ignored)
sudo docker build --network host -f build/Dockerfile -t rimedo-labs/ransim-api-demo:v0.0.1 .
sudo: docker: command not found
Makefile:13: recipe for target 'docker' failed