it happened something wrong when i build it.

[EKYuan023098]

GOROOT=C:\Go #gosetup
GOPATH=D:\Code\ProjectDir\Go #gosetup
C:\Go\bin\go.exe test -c -o C:\Users\admin\AppData\Local\Temp___TestBer2Der_in_ber_test_go.exe D:/Code/ProjectDir/Go/pkcs7-master/ber_test.go #gosetup

command-line-arguments [command-line-arguments.test]

.\ber_test.go:14:14: undefined: ber2der
.\ber_test.go:22:18: undefined: ber2der
.\ber_test.go:53:13: undefined: ber2der
.\ber_test.go:68:14: undefined: ber2der
.\ber_test.go:76:18: undefined: ber2der