error number
error message
Explanation
6008
Circular variable dependency detected
A variable has been defined in terms ofitself, possibly in a circular chain of expression variables. Make sure that variable definitions are sound. Be cautious with equation variables in equations.
4119
Singular edge detected
The geometry object contains an edge ofzero length.
6000–6999 Assembly and Extended Mesh
Table 2-4:assembly and extended mesh error messages
2190
Invalid radius or distance
Incorrect input parameters to fillet/chamfer.
2197
Operation resulted in empty geometryobject
Geometry operation resulted in an emptygeometry object which is not allowed. Make sure an empty geometry object is not created.
4003
A degenerated triangle was created
The mesh generator ran into numericaldifficulties while creating triangles with a size based on user-controlled parameters. Causes could be too small and narrow subdomains relative to the rest of the geometry or exceedingly short boundary segments. Try to avoid creating small and narrow subdomains and very short boundary segments that are adjacent to longer boundary segments.
6063
Invalid degree of freedom name
The software does not recognize the nameof a degree of freedom. Check the names of dependent variables that you have entered for the model. See also Error 7192.
The revolved mesh has a singularity at the zaxis. If possible, create the cylinder using a 3D primitive or by revolving the geometry before meshing.
2146
Diagnostics: Error Messages
Error Messages
This section summarizes the most common error messages and solver messagesgenerated by COMSOL Multiphysics. All error messages are numbered and sorted in different categories according to the following table.
4000–4999 Mesh Generation
Table 2-3:mesh generation error messages
error number
error message
Explanation
4002
A degenerated tetrahedron was created
The mesh generator ran into numericaldifficulties while creating tetrahedrons with a size based on user-controlled parameters. Causes could be too small and narrow subdomains relative to the rest of the geometry or exceedingly short boundary segments. Try to avoid creating small and narrow subdomains and very short boundary segments that are adjacent to longer boundary segments.
Subdomain must bounded at least fourboundary segments
Incorrect geometry for mapped mesh. Nhomakorabea2147
Subdomain must bound one connected edgecomponent only
Incorrect geometry for mapped mesh.
2119
Non scalar output from empty input
Incorrect Geometry M-file.
2120
Normal directions are inconsistent
Incorrect input data from STL/VRMLimport.
2138
Self intersections not supported
Table 2-1:Error Message Categories
Numbers
Category
1000–1999
Importing Models
2000–2999
Geometry Modeling
3000–3999
CAD Import
4000–4999
Mesh Generation
5000–5999
4026
Failed create matching edge discretizations
Cannot make mapped mesh with the giveninput parameters.
4029
Failed to insert point
Problems inserting point at givencoordinate. Manually inserting a point there may help.
2000–2999 Geometry Modeling
Table 2-2:geometry modeling error messages
Error number
error message
Explanation
2118
Negative output from empty input
Incorrect Geometry M-file.
Point, Edge, Boundary, and Subdomain Specification
6000–6999
Assembly and Extended Mesh
7000–7999
Solvers
8000–8999
Postprocessing
9000–9999
General
For error messages that do not appear in the following lists, contact COMSOL’ssupport team for help.
4031
Failed to respect boundary element ongeometry edge
The mesh generator failed in making theelements compatible with the geometry object’s edges. The reason for this could be that the face mesh is too coarse or contains adjacent elements with large differences in scale. Another reason can be that some subdomains in the geometry are too narrow with respect to the rest of the geometry.
4032
Failed to respect boundary element ongeometry face
See Error message 4031.
4044
Internal error boundary respecting
See Error message 4031.
4054
Invalid topology of geometry
2209
Geometry to revolve may not cross axis ofrevolution
The axis of revolution and the geometryintersect. Check the dimension of the geometry and the definition of the axis for the revolution.