AWS CodeBuild golang构建失败

When I run the following command: - go build -o app I get the following error (for multiple dependencies) : main.go:21:2: cannot find package "github.com/gorilla/mux" in any of: /usr/local/go/src/github.com/gorilla/mux (from $GOROOT) /go/src/github.com/gorilla/mux (from $GOPATH) /codebuild/output/src324986171/src/github.com/gorilla/mux

Meaning the codebuild fails. Any idea how I can fix this, or in general where the problem is ? Thanks for your help.

EDIT: After adding go get ./... to the build I get the following error for all my local packages:# cd .; git clone https://github.com/aristotle/dbhelper /go/src/github.com/aristotle/dbhelper Cloning into '/go/src/github.com/aristotle/dbhelper'...

My buildspec.yml looks like this:

version: 0.2

phases:
  install: 
    commands:
      - echo CODEBUILD_SRC_DIR - $CODEBUILD_SRC_DIR
      - echo GOPATH - $GOPATH
      - echo GOROOT - $GOROOT
  build:
    commands:
      - echo Build started on `date`
      - echo Getting packages
      - go get ./...
      - echo Compiling the Go code...
      - go build -o app main.go
  post_build:
    commands:
      - echo Build completed on `date`
artifacts:
  files:
    - app

</div>

According to this article you need to add it to the install section of your buildspec.yml file.

install: 
    commands:
      - go get github.com/gorilla/mux

maybe it does also work to include go get ./... this will resolve all dependencies... but if you do not have too many it is a good practise to list them explicitly.

this is the source article: https://www.contributing.md/2017/06/30/golang-with-aws-codebuild/