升级Go版本后编译出错:Load redeclared in this block

栏目: IT技术 · 发布时间: 4年前

内容简介:今天打算把Go升级到先上Go官方下载页面(下载好后把压缩包解压到相应的目录:

今天打算把 Go 升级到 1.14.2 ,升级的方法就两步,

先上Go官方下载页面( https://golang.org/dl/ )下载macos对应的二进制包( 1.14.2 地址 https://dl.google.com/go/go1.14.2.darwin-amd64.tar.gz

下载好后把压缩包解压到相应的目录:

$sudo tar -C /usr/local -xzf go1.14.2.darwin-amd64.tar.gz

因为是升级,不是初次安装,之前已经把PATH设置好了,就不用管了。

之后执行以下命令,查看Go版本:

$go version
go version go1.14.2 darwin/amd64

看到已经是 1.14.2 了,美滋滋。

但是用Go编译自己的程序,输出一大段如下错误:

# 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

错误提示中说,atomic中的很多内容都重定义了,打开目录 /usr/local/go/src/runtime/internal/atomic 下的 atomic_amd64x.goatomic_amd64.go ,发现内容都差不多。

猜想可能新版本的源码文件名变更了,由于我们的新版本是直接解压过去的,导致老版本和新版本的源码文件同时存在。

尝试将 /usr/local/go 整个删除,再次 sudo tar -C /usr/local -xzf go1.14.2.darwin-amd64.tar.gz 安装新版本。

之后用Go编译程序就没有错误了。

/usr/local/go/src/runtime/internal/atomic 目录看,只有 atomic_amd64.go 文件了,说明猜想正确。问题解决。

总结一下,安装Go时,如果选择安装在老版本目录,最好先把老版本完整删除掉。

本文完,作者 yoko ,尊重劳动人民成果,转载请注明原文出处: https://pengrl.com/p/20052/


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