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Fail to evaluate variable G(generation term)

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Hi,
I'm getting this error repeatedly and couldn't solve further.I request to help me...

Failed to evaluate variable.
- Variable: G
- Geometry: 1
- Domain: 1
Failed to evaluate expression.
- Expression: G
- Plot: lngr1 (Line graph)

Where 'G' expresses the generation rate.
Expression: G= multFactPower*(powerFlowDiv)/(c_const*h_plank/lambda)

I am working in Wave Optics module. Do you know how to fix the problem?
I tried to attach the file, but the file is too big. So i couldn't.
Thanks in advance.

0 Replies Last Post 15.02.2015, 11:21 GMT-5
COMSOL Moderator

Hello Lakibul Hassan Evan

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