goland – package XXX is not in GOROOT when building a Go project

goland – package XXX is not in GOROOT when building a Go project

You may have GO111MODULE set on, which will be on the go mod. Turning off the GO111MODULE may resolve this problem.

go env -w GO111MODULE=off

A pretty dumb conclusion (mostly on my part) but my issue came from having done go mod init in each of the folders. after removing go.mod and go.dep from each of the folders I did go mod init in, I could build without issue (through terminal)

Also, my packages in GoLand were not being detected because I had Go Modules enabled in the Settings. I disabled it and GoLand was able to index the external packages and my own packages.

goland – package XXX is not in GOROOT when building a Go project

To anyone who does want modules to work with GoLand after they have stopped doing so, make sure Enable Go modules integration is checked in the Preferences as such: