opened
hamdiwanis
username_0
Version
0.7.0-beta.4

Environment
Macos sierra , chrome 65

Reproduction link
Https://stackblitz.com/edit/ng-zorro-antd-setup-x6x2jg

Steps to reproduce
Click on a node tree

What is expected?
To work

What is actually happening?
Error produced

Other?
http://ng.ant.design/issue-helper/
issue