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failed to evaluate Jacobian of expression

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Hello there ~ I am newby in this software, would anyone tell me what should I do if got error like this?

Undefined variable.
- Variable: mod1.I
- Geometry: geom1
- Domain: 3
Failed to evaluate Jacobian of expression.
- Expression: dvol*(mod1.ht.hs1.Q*mod1.ht.d)
Failed to evaluate Jacobian of expression.
- Expression: (mod1.ht.hs1.Q*test(mod1.T)*mod1.ht.d)*(dvol)

Thank you in advance


0 Replies Last Post Nov 1, 2021, 3:34 a.m. EDT
COMSOL Moderator

Hello Luluil Maknuna

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