如何在 Go 中安装需求? “无法找到软件包”

我是 Go 的新手，我试图用最少的文档建立一个 Go 项目: https://github.com/alphagov/metadata-api

我已经克隆了它，但是当我尝试 go build时，我会得到以下警告:

main.go:8:2: cannot find package "github.com/Sirupsen/logrus" in any of:
/usr/local/Cellar/go/1.3.3/libexec/src/pkg/github.com/Sirupsen/logrus (from $GOROOT)
/Users/me/go/src/github.com/Sirupsen/logrus (from $GOPATH)
main.go:14:2: cannot find package "github.com/alphagov/metadata-api/content_api" in any of:
/usr/local/Cellar/go/1.3.3/libexec/src/pkg/github.com/alphagov/metadata-api/content_api (from $GOROOT)
/Users/me/go/src/github.com/alphagov/metadata-api/content_api (from $GOPATH)

我猜这是因为我没有安装相当于需求的 Go？

我的 GOPATH设置好了:

metadata-api$ echo $GOPATH
/Users/me/go

Go 可执行文件在

metadata-ape$ echo $PATH
....:/Users/me/go/bin

我要怎么做才能帮你找到这些包裹？

123176 次浏览
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最佳答案

You should install package first:

try 

$ go get github.com/Sirupsen/logrus

and check you $GOPATH dir

This project use gom as the package manager,

Make sure you have installed gom

or try this command

$ gom install

I think your $GOPATH and $PATH settings are incorrect, the $GOPATH environment variable specifies the location of your workspace, these are my path settings:

export GOROOT=$HOME/bin/go
export GOBIN=$GOROOT/bin
export GOPATH=$HOME/golang
export PATH=$PATH:$GOBIN
小开

I had similar issue and 

export GO111MODULE=on

helped.

小开

Was able to fix the similar issue in Go 1.13.7 by typing:

 export GOPATH=~/go
go get github.com/profile/repository
(e.g. github.com/Sirupsen/logrus)
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"...Starting in Go 1.13, module mode will be the default for all development..."

"...When using modules, GOPATH is no longer used for resolving imports. However, it is still used to store downloaded source code (in GOPATH/pkg/mod) and compiled commands (in GOPATH/bin)..."

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When you need your code to do something that might have been implemented by someone else (in Github or a package somewhere else), You should initialize a go mod file inside of your folder.)

For the purposes of this example, I'll just use example.com/module.

go mod init example.com/module

Add new module requirements and sums:

go mod tidy

Run your program:

go run .

For more details, see https://golang.org/doc/tutorial/getting-started.


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