英文:
Vscode gives error "could not import fmt (cannot find package "fmt" )" for simple go program
问题
以下是我的系统配置。
操作系统：Microsoft Windows 10 Enterprise
Go 版本：go version go1.15.7 windows/amd64
我正在尝试执行的程序如下：
package main
import "fmt"
func main() {
fmt.Println("Hello World from Go")
}
问题是，我可以在命令行中编译和运行一个简单的 Hello World 程序，但在 vscode 中却显示错误。
could not import fmt (cannot find package "fmt" in any of c:\go\src\fmt (from $GOROOT)
C:\Users\ameena\go\src\fmt (from $GOPATH))compiler
我是否漏掉了什么？
谢谢
Amit
英文:
Following is my system configuration.
OS : Microsoft Windows 10 Enterprise
Go version: go version go1.15.7 windows/amd64
The program which I am trying to execute is as below
package main
import "fmt"
func main() {
fmt.Println("Hello World from Go")
}
The problem is I can compile and run a simple Hello world program from the command line but inside vscode it showed the error.
could not import fmt (cannot find package "fmt" in any of c:\go\src\fmt (from $GOROOT)
C:\Users\ameena\go\src\fmt (from $GOPATH))compiler
Am I missing here something ??
Regards
Amit
答案1
得分: 2
根据这里的解释（适用于GoLand，但也适用于VSCode-Go）：
GOROOT是一个变量，用于定义Go SDK的位置。除非你打算使用不同的Go版本，否则不需要更改此变量。GOPATH是一个变量，用于定义工作区的根目录。默认情况下，工作区目录是用户主目录中名为go的目录（对于Linux和MacOS是~/go，对于Windows是%USERPROFILE%/go）。
如果你没有在默认路径（C:\Go）中安装Go，则需要将GOROOT环境变量设置为Go安装的根文件夹。
OP Amit Meena在评论中确认：
在我的环境中，
GOROOT变量缺失：创建GOROOT变量并将其指向Go安装目录后，VSCode中的错误消失了。
英文:
As explained here (for GoLand, but it applies to VSCode-Go as well)
> GOROOT is a variable that defines where your Go SDK is located.
You do not need to change this variable, unless you plan to use different Go versions.
>
> GOPATH is a variable that defines the root of your workspace.
By default, the workspace directory is a directory that is named go within your user home directory (~/go for Linux and MacOS, %USERPROFILE%/go for Windows).
If you did not install Go in the default paths (C:\Go), you need to set the GOROOT environment variable to the root folder of your Go installation.
The OP Amit Meena confirms in the comments:
> Seems in my env GOROOT variable was missing: on creating the GOROOT variable and pointing it to go installation directory, the error has gone from VSCode.
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