不能使用函數作爲輸入的類型

Question

我想從源（我想用調試器跟蹤執行）運行以太坊，我在編譯時遇到問題。這是我得到的錯誤：

[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 $GOPATH 
/home/niko/sources/github.com/ethereum/go-ethereum/build/_workspace/:/home/niko/sources/github.com/ethereum/go-ethereum/vendor:/home/niko/go 
[niko@localhost sources]$ 

，你可以看到它抱怨說：

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

是不一樣的：

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

然而，這是一樣的，因爲我手動將其複製到/ 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]$ 

而且這是我GOPATH

那麼，我該如何解決這個錯誤得到，我怎麼告訴轉到該軟件包是一個好？

Answer 1

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

gopkg.in/urfave/cli.v1

是不同的導入路徑封裝，無論是內容，他們被認爲是不同的。

這裏的問題是，你的程序以某種方式從不同的位置加載兩次，導致你提供的錯誤消息。

我不是你使用的go run命令行那麼清楚，我寧願做，

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 

除非你想破解復仇，我看不出有任何理由它的依賴複製到您的GOPATH。 因爲他們出售他們的依賴關係（IE：他們複製他們的依賴關係到供應商文件夾）ref：https://github.com/ethereum/go-ethereum/tree/master/vendor你真的應該使用這些。

關於您GOPATH

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

它不會對我來說很好。

如果GOPATH=/home/niko/sources/，然後，

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應該是正確的。

另請參閱go env。