Error Messages

"Data access entity removed" occurs in my application

Solution Number: 1247 Versions: 5.4, 5.5

When running my application, I get the error "Data access entity removed". If a node is removed, Data Access to the node becomes invalidated. In general this error occurs if nodes used in Data Access are explicitly ...


Solution number is out of range

Solution Number: 1249 Applies to: COMSOL Multiphysics Versions: 5.3a

You compute a distributed parametric sweep on a cluster. When processing the results some values are missing or you get errors such as "The solution number is invalid" or "Solution number is out of range". This issue ...


Out of Memory

Solution Number: 1243 Versions: All versions

The error "Out of Memory" occurs. Of the available memory (RAM and virtual memory), one section, the Java heap, is reserved for Java. The rest of the memory will be available for meshing and solving. If you receive the ...


Unexpected error thrown by the Method Editor

Solution Number: 1242 Applies to: COMSOL Multiphysics, COMSOL Server Versions: All versions

I run COMSOL Multiphysics on Windows 7. When trying to access the Method Editor in the Application Builder, I get an unexpected error. When opening the log file, the top of the stack trace looks like this: 2018-01 ...


Running Client-Server consumes too many licenses or gives an error message

Solution Number: 1241 Applies to: COMSOL Multiphysics Versions: 5.3a

I am having problems running COMSOL Multiphysics 5.3a in Client-Server mode. The issue manifests itself in two different ways. If you are using a multi-seat Floating Network License (FNL), you may notice from the ...


An error is returned when running mphlaunch and mphstart

Solution Number: 1234 Versions: 5.3

If the COMSOL installation path contains a space, an error is returned when running the functions mphstart and mphlaunch at the MATLAB prompt. The error returned when running mphlaunch is: 'C:\Program' is not ...


Undefined variable

Solution Number: 1204 Versions: All versions

The following error occurs: "Undefined variable." This error indicates that a variable used in some setting is undefined. It might be a spelling error, or a name of a variable that has not been defined or that is not ...


Circular variable dependency detected

Solution Number: 1215 Versions: All versions

One of the following errors occur: "Circular variable dependency detected." or "There are cyclic dependencies." If you get one of these errors, a variable or parameter has been defined in terms of itself, possibly in a ...


Manually setup the geometric multigrid solver

Solution Number: 1213 Versions: All versions

The geometric multigrid solver accelerates the convergence of the iterative solver by solving the finite element problem on a series of meshes rather than a single one. The multigrid algorithm starts with the initial ...


Failed to respect edge element on geometry edge

Solution Number: 1207 Applies to: COMSOL Multiphysics Versions: All versions

The error "Failed to respect edge element on geometry edge" occurs. First, due to continual improvements in meshing, make sure to use the latest version of COMSOL Multiphysics: Product Download The mesh generator ...


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