英文:
Error "cannot download, $GOPATH not set."
问题
设置：
看一下我的配置：
$ echo $GOPATH && ls -r $GOPATH
/home/cyrus/.go
src pkg bin
$ echo $GOROOT && ls $GOROOT
/usr/local/go
api AUTHORS bin CONTRIBUTORS doc favicon.ico include lib LICENSE misc PATENTS pkg README robots.txt src test VERSION
你可以看到我已经设置了$GOPATH的路径。此外，我还创建了一些可能不需要的子目录。
问题：
为什么下面的命令会生成这个错误信息？
$ go get code.google.com/p/go-tour/gotour
package code.google.com/p/go-tour/gotour: cannot download, $GOPATH not set. For more details see: go help gopath
英文:
Setup:
Have a look at my configuration:
$ echo $GOPATH && ls -r $GOPATH
/home/cyrus/.go
src pkg bin
$ echo $GOROOT && ls $GOROOT
/usr/local/go
api AUTHORS bin CONTRIBUTORS doc favicon.ico include lib LICENSE misc PATENTS pkg README robots.txt src test VERSION
You can see that I've set a path for $GOPATH. In addition, I've created subdirectories that I may not need.
Question:
Why does the following command generate this error message?
$ go get code.google.com/p/go-tour/gotour
package code.google.com/p/go-tour/gotour: cannot download, $GOPATH not set. For more details see: go help gopath
答案1
得分: 32
如果你像这样设置一个变量：
GOPATH=$HOME/go
它不会被导出到任何子进程中。它只对该进程可用。如果你想要将它导出到子进程中，使用 export：
export GOPATH
你也可以将赋值和导出结合起来：
export GOPATH=$HOME/go
英文:
If you set a variable like this:
GOPATH=$HOME/go
It won't be exported to any subprocesses. It's only available to that process. If you want to export it to subprocesses, use export:
export GOPATH
You can also combine the assignment and export:
export GOPATH=$HOME/go
答案2
得分: 1
我的$GOROOT目录是以所有者：root和组：wheel创建的，而不是我作为所有者和管理员作为组。我猜我在不应该使用sudo时使用了sudo（或者某个工具替我使用了sudo）。因此，go get无法将包写入$GOROOT，因此出现了$GOPATH未设置和权限被拒绝的错误。
通过在我的$GOROOT上使用chown和chgrp（使用-R获取子文件夹），'go get...'可以工作。在我的情况下，VS Code现在能够安装我想要的Go组件。
英文:
My $GOROOT directory was created with owner: root and group: wheel instead having me as the owner and admin as the group. I'll guess that I used sudo when I shouldn't have (or some tool did it for me). As such go get could not write the packages to $GOROOT and hence the $GOPATH not set and permission denied errors.
By using chown and chgrp on my $GOROOT (with -R to get subfolders) 'go get...' worked. In my case VS Code was now able to install the Go components I was after.
答案3
得分: 1
当您运行go env时，您应该能够看到您的GOPATH是否已设置。
在我的情况下，当我在终端上运行此命令时，问题得到解决。
export GOPATH=/usr/local/bin
英文:
When you run go env, you should be able to see if your GOPATH has been set.
On my case though, this command solves it when I had it run on my terminal.
export GOPATH=/usr/local/bin
答案4
得分: 0
我已经设置了GOPATH，并且使用命令go env正确显示。我必须使用chmod为go目录提供正确的权限，并通过go get github.com/constabulary/gb/...安装gb。
英文:
i had setup GOPATH and it showed correctly with command go env. i had to give the correct permissions to the go directory using chmod and install gb by go get github.com/constabulary/gb/....
答案5
得分: 0
首先执行`go env'并检查GOROOT路径。然后设置GOPATH。
在我的情况下，我需要将GOPATH设置为/usr/lib/go。之前我尝试过/usr/share/go和/usr/bin/go，但都没有成功。
英文:
First do a `go env' and check the path GOROOT. Accordingly set the GOPATH.
In my case, it had to set GOPATH to /usr/lib/go. Earlier i tried it with /usr/share/go and /usr/bin/go but it didn't work.
答案6
得分: 0
$GOPATH应该是您当前的工作区，即项目所在的文件夹。
或者只需cd ~/go并尝试运行这些命令。
或者您可以在ubuntu的~/.bashrc或~/.bashrc_profile中更新$GOPATH。
英文:
$GOPATH should be your current workspace , a folder where your project resides.
or just cd ~/go and try to run those commands.
Or you can just update $GOPATH in ~/.bashrc or ~/.bashrc_profile on ubuntu
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