1.执行git clone /ethereum/go-ethereum命令报错undefined symbol: __gmpz_limbs_write

通过git下载以太坊客户端（PoW）时报错undefined symbol: __gmpz_limbs_write解决方案如下：

cd /usr/local/libsudo rm libgmp*sudo apt --fix-broken install

2.执行make命令编译geth文件时报错cannot find package “/cespare/cp“ in any of ：/usr/lib/go-1.10/src//cespare/cp (from $GOROOT)

/home/yuewang/go/src//cespare/cp (from $GOPATH)

执行make命令编译geth文件时报错cannot find package “/cespare/cp“ in any of ：/usr/lib/go-1.10/src//cespare/cp (from $GOROOT)

/home/yuewang/go/src//cespare/cp (from $GOPATH)***********Makefile:12: recipe for target 'geth' failed

make: *** [geth] Error 1 。因为go的版本太低导致，解决方案如下：

sudo add-apt-repository ppa:longsleep/golang-backportssudo apt updatesudo apt install golang-go

3.执行make命令编译geth文件时报错dial tcp 172.217.163.49:443: connect: connection refused

执行make命令编译geth文件时报错dial tcp 172.217.163.49:443: connect: connection refused解决方法如下：

首先在控制台执行：

go env -w GOPROXY=

然后再重新执行：

make