Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

error "cannot evaluate expression"

Please login with a confirmed email address before reporting spam

Hi, there is an error information when I solve two 1D-PDE models in comsol. How can I solve it? Thanks a lot.

By the way, I don't select any material, since the value of the solutions mean density distribution.

Cannot evaluate expression.
Failed to evaluate variable.
- Variable: mod2.H
- Geometry: 1
- Domain: 1
Failed to evaluate expression.
- Expression: mod2.H
- Plot: lngr1 (Line graph)

0 Replies Last Post 2013年3月19日 GMT-4 11:20
COMSOL Moderator

Hello X Wu

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.