去构建失败：运行/ mstkbar.go：151：10：debug.gcstackbarrieroff未定义
问题描述：
该代码使用golang（1.8.3）的以前版本编译OK但是无法升级到新的golang（1.9）去构建失败：运行/ mstkbar.go：151：10：debug.gcstackbarrieroff未定义
之后编译~/src/gopath/src/github.com/scottstensland/infosynth $ go build infosynth.go
# runtime
/usr/local/go/src/runtime/mstkbar.go:151:10: debug.gcstackbarrieroff undefined (type struct { allocfreetrace int32; cgocheck int32; efence int32; gccheckmark int32; gcpacertrace int32; gcshrinkstackoff int32; gcrescanstacks int32; gcstoptheworld int32; gctrace int32; invalidptr int32; sbrk int32; scavenge int32; scheddetail int32; schedtrace int32 } has no field or method gcstackbarrieroff)
/usr/local/go/src/runtime/mstkbar.go:162:24: division by zero
/usr/local/go/src/runtime/mstkbar.go:162:43: invalid expression unsafe.Sizeof(composite literal)
/usr/local/go/src/runtime/mstkbar.go:162:44: undefined: stkbar
/usr/local/go/src/runtime/mstkbar.go:212:4: gp.stkbar undefined (type *g has no field or method stkbar)
/usr/local/go/src/runtime/mstkbar.go:213:15: gp.stkbar undefined (type *g has no field or method stkbar)
/usr/local/go/src/runtime/mstkbar.go:216:23: undefined: stackBarrierPC
/usr/local/go/src/runtime/mstkbar.go:226:28: gp.stkbarPos undefined (type *g has no field or method stkbarPos)
/usr/local/go/src/runtime/mstkbar.go:227:19: gp.stkbarPos undefined (type *g has no field or method stkbarPos)
/usr/local/go/src/runtime/mstkbar.go:248:41: undefined: stkbar
/usr/local/go/src/runtime/mstkbar.go:227:19: too many errors
有什么想法？实际上，这个错误发生在任何golang版本升级，而不仅仅是我在这里提到的版本。
PS发行时，也得到同样的错误：去拿-v -t/...
答
解决方案：必须先删除以前golang安装安装新版本去之前
type go # issue this to confirm where your go lives
的典型输出：
go is /usr/local/go/bin/go # delete /usr/local/go not just /usr/local/go/bin/go
所以只是将其删除
sudo rm -rf /usr/local/go # OP's missing step else above errors
安装新版本
export golang_ver=$(curl https://golang.org/VERSION?m=text 2> /dev/null)
wget https://storage.googleapis.com/golang/${golang_ver}.linux-amd64.tar.gz
sudo tar -C /usr/local -xzf ${golang_ver}.linux-amd64.tar.gz
答
我使用Windows10之前。我必须使用控制面板卸载go18（当他要求卸载prev版本时，不要信任1.9安装程序 - 手动执行）。之后，我删除c：\ go - 默认goroot，并且只有在此之后 - 安装1.9。在我的情况下，它是1.9.2 当然，检查你的GOROOT & & GOPATH