从 Go 1.13 升级后使用 Go 1.14 构建时，是什么导致了有关“先前声明于”的运行时内部错误？

Question

将我的go安装文件夹升级到Go 1.14

sudo tar -C /usr/local -xzf go1.14.linux-amd64.tar.gz

每次尝试构建程序时，我都会收到运行时错误：

~/playground/go/src/hello ? go build hello
# runtime/internal/atomic
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:18:6: Load redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:16:24
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:24:6: Loadp redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:22:32
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:30:6: Load64 redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:28:26
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:36:6: LoadAcq redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:34:27
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:41:6: Xadd redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:39:37
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:44:6: Xadd64 redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:42:39
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:47:6: Xadduintptr redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:45:47
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:50:6: Xchg redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:48:36
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:53:6: Xchg64 redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:51:38
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:56:6: Xchguintptr redeclared in this block
    previous declaration at /usr/local/go/src/runtime/internal/atomic/atomic_amd64.go:54:45
/usr/local/go/src/runtime/internal/atomic/atomic_amd64x.go:56:6: too many errors

我试图降级到的版本1.13.8和build和run去罚款。

sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.13.8.linux-amd64.tar.gz

~ ? go version
go version go1.13.8 linux/amd64

~/go ? go build hello && go run hello
hello, world

我的操作系统是 Linux Mint 19.2。

Answer 1

当目标目录已用于较旧的Go安装并且某些文件已重命名（与以前的版本相比）时，会出现此错误。

例如：

在围棋1.13.8文件go/src/runtime/internal/atomic/atomic_amd64x.go已被移动到go/src/runtime/internal/atomic/atomic_amd64.go在围棋1.14。

在不清理目标目录的情况下提取会触发“先前声明”错误，因为func Xchguintptr在go/src/runtime/internal/atomic/atomic_amd64x.go和go/src/runtime/internal/atomic/atomic_amd64.go

为避免此类错误，请删除安装文件夹 ( /usr/local/go ) 并重新安装Go 1.14。

sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.14.linux-amd64.tar.gz

再次测试：

~/go/src/hello ? go version
go version go1.14 linux/amd64
~/go/src/hello ? go build hello && go run hello
hello, world