TiDB Make时报错：

package golang.org/x/text/encoding: unrecognized import path "golang.org/x/text/encoding"

package golang.org/x/tools/go/gcimporter: unrecognized import path "golang.org/x/tools/go/gcimporter"
package golang.org/x/tools/go/types: unrecognized import path "golang.org/x/tools/go/types"

由于GFW的原因，无法下载gcimporter源码和types源码，其实该源码在git上也有，只要下载下来，然后再GOPATH中写上相应的路径就可以通过编译，具体步骤如下 ：

1. clone git上的代码到本地,比如clone到$GOPATH/src/golang.org/x/tools目录

[root@docker ~]# git clone https://github.com/golang/tools.git $GOPATH/src/golang.org/x/tools
[root@docker ~]# git clone https://github.com/golang/text.git $GOPATH/src/golang.org/x/text

2. 然后再make tidb

[root@docker ~]# cd $GOPATH/src/github.com/pingcap/tidb

[root@docker tidb]# make

此时不再报如下错误了。

package golang.org/x/tools/go/gcimporter: unrecognized import path "golang.org/x/tools/go/gcimporter"
package golang.org/x/tools/go/types: unrecognized import path "golang.org/x/tools/go/types"

from http://www.cnblogs.com/stoneblog/p/5028317.html