不能使用函数作为输入的类型

Question

我想从源（我想用调试器跟踪执行）运行以太坊，我在编译时遇到问题。这是我得到的错误：

[niko@localhost sources]$ go run github.com/ethereum/go-ethereum/cmd/geth/main.go github.com/ethereum/go-ethereum/cmd/geth/config.go github.com/ethereum/go-ethereum/cmd/geth/chaincmd.go github.com/ethereum/go-ethereum/cmd/geth/monitorcmd.go github.com/ethereum/go-ethereum/cmd/geth/accountcmd.go gopkg.in/urfave/cli.v1 --verbosity 5 --ipcdisable --port 40401 --rpc --rpcport 9101 --pprof --datadir=/home/niko/saved-niko-home/myeth/ --networkid=15 console 
# command-line-arguments 
github.com/ethereum/go-ethereum/cmd/geth/config.go:42: cannot use dumpConfig (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/chaincmd.go:43: cannot use initGenesis (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/chaincmd.go:60: cannot use importChain (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/chaincmd.go:78: cannot use exportChain (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/chaincmd.go:95: cannot use removeDB (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/chaincmd.go:108: cannot use dump (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/monitorcmd.go:52: cannot use monitor (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/accountcmd.go:50: cannot use importWallet (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/accountcmd.go:96: cannot use accountList (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/accountcmd.go:107: cannot use accountCreate (type func(*"gopkg.in/urfave/cli.v1".Context) error) as type func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) error in argument to utils.MigrateFlags 
github.com/ethereum/go-ethereum/cmd/geth/accountcmd.go:107: too many errors 
[niko@localhost sources]$ 
[niko@localhost sources]$ echo $GOPATH 
/home/niko/sources/github.com/ethereum/go-ethereum/build/_workspace/:/home/niko/sources/github.com/ethereum/go-ethereum/vendor:/home/niko/go 
[niko@localhost sources]$ 

，你可以看到它抱怨说：

func(*"gopkg.in/urfave/cli.v1".Context) 

是不一样的：

func(*"github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1".Context) 

然而，这是一样的，因为我手动将其复制到/ home/niko/go，其中包含我所有的Go包：

[niko@localhost sources]$ find /home/niko/go -iname "*cli.v1*" 
/home/niko/go/src/gopkg.in/urfave/cli.v1 
/home/niko/go/pkg/linux_amd64/gopkg.in/urfave/cli.v1.a 
[niko@localhost sources]$ 

而且这是我GOPATH

那么，我该如何解决这个错误得到，我怎么告诉转到该软件包是一个好？

Answer 1

github.com/ethereum/go-ethereum/vendor/gopkg.in/urfave/cli.v1

gopkg.in/urfave/cli.v1

是不同的导入路径封装，无论是内容，他们被认为是不同的。

这里的问题是，你的程序以某种方式从不同的位置加载两次，导致你提供的错误消息。

我不是你使用的go run命令行那么清楚，我宁愿做，

go run github.com/ethereum/go-ethereum/cmd/geth/*go --verbosity 5 --ipcdisable --port 40401 --rpc --rpcport 9101 --pprof --datadir=/home/niko/saved-niko-home/myeth/ --networkid=15 console 

除非你想破解复仇，我看不出有任何理由它的依赖复制到您的GOPATH。 因为他们出售他们的依赖关系（IE：他们复制他们的依赖关系到供应商文件夹）ref：https://github.com/ethereum/go-ethereum/tree/master/vendor你真的应该使用这些。

关于您GOPATH

/home/niko/sources/github.com/ethereum/go-ethereum/build/_workspace/:/home/niko/sources/github.com/ethereum/go-ethereum/vendor:/home/niko/go

它不会对我来说很好。

如果GOPATH=/home/niko/sources/，然后，

tree $GOPATH -L 1 
/home/niko/sources/ 
├── bin 
├── pkg 
└── src 

3 directories, 0 files 

而且ls -al $GOPATH/src/github.com/ethereum/go-ethereum应该是正确的。

另请参阅go env。