// These executables might not be on the user's path.
_,err:=exec.LookPath("kubectl")
iferr!=nil{
_,err=exec.LookPath("kubelet")
iferr!=nil{
exitWithError(fmt.Errorf("Version check failed: need kubectl or kubelet binaries to get kubernetes version.\nAlternately, you can specify the version with --version"))
return"",fmt.Errorf("need kubectl or kubelet binaries to get kubernetes version")