@apurohitm do you have a colon in your $GOPATH? I don't personally use it like that but it is a valid configuration as described here. If I add one I can reproduce this error:
mkdir /tmp/go
export GOPATH=$GOPATH:/tmp/go
make install
The reason for this is similar to the answer here.
I am transitioning from Java to Go, trying to build a web application with some UI.
After cloning repo I am running make install, but I am getting this error.
Makefile:19: *** target pattern contains no `%'. Stop.
Please let me know if I have missed anything.