运行make后出现意外的目录布局

Question

I was following serverless golang lambda support, but when I got to step

$ cd myservice
$ make

I got this error:

dep ensure
env GOOS=linux go build -ldflags="-s -w" -o bin/hello hello/main.go
unexpected directory layout:
    import path: github.com/aws/aws-lambda-go/lambda
    root: /home/yasmine/go/src
    dir: /home/yasmine/go/src/myservice/vendor/github.com/aws/aws-lambda-go/lambda
    expand root: /home/yasmine/go/src
    expand dir: /home/yasmine/go/src/myservice/vendor/github.com/aws/aws-lambda-go/lambda
    separator: /
Makefile:2: recipe for target 'build' failed
make: *** [build] Error 1

How do I fix this? Thank you.