Redeclared error after run ginkgo bootstrap with -nodot option

[wingyplus]

After run ginkgo with ginkgo boostrap -nodep. It cannot run due to compile error. Reproduce issue steps below:

$ go get -v -u github.com/onsi/ginkgo/...
github.com/onsi/ginkgo (download)
github.com/hpcloud/tail (download)
$ mkdir newsys # this folder create under my $GOPATH/src/github.com/wingyplus
$ cd newsys/
$ ginkgo bootstrap -nodot
Generating ginkgo test suite bootstrap for newsys in:
        newsys_suite_test.go
To update the nodot declarations in the future, switch to this directory and run:
        ginkgo nodot
$ ginkgo
Failed to compile newsys:

# git.domain/repo/newsys_test [git.domain/repo/newsys.test]
./newsys_suite_test.go:82:5: Expect redeclared in this block
        previous declaration at ./newsys_suite_test.go:70:5
./newsys_suite_test.go:83:5: Eventually redeclared in this block
        previous declaration at ./newsys_suite_test.go:72:5
./newsys_suite_test.go:84:5: Consistently redeclared in this block
        previous declaration at ./newsys_suite_test.go:74:5

Ginkgo ran 1 suite in 1.325145506s
Test Suite Failed

After I found this error, I grep Expect to see when it redeclared:

$ grep -r 'Expect' . --color
./newsys_suite_test.go:var Expect = gomega.Expect
./newsys_suite_test.go:var ExpectWithOffset = gomega.ExpectWithOffset
./newsys_suite_test.go:var Expect = gomega.Expect