Ambari Metrics Widgets display No Data Available when the expression have subtraction?

[#1]

When I reinstall the Ambari Metrics，I find some widget didn't work。After carefully analyzation，I find out that in the all error widget the expression have subtraction.

Anybody knows how to solve it ?

[#2]

I am using Ambari 2.6.2.2 and Ambari Metrics version is 0.1.0

[#3]

I will try to do it by using your suggestion at tomorrow. By the way, txs

[#4]

It worked，thanks

[#5]

@Magical Jelly

Good to know that the issue is resolved. It will be wonderful if you can mark this HCC thread as Answered by clicking on the "Accept" link then other HCC users can quickly find the answered threads.