Error Messages
Duplicate parameter/variable name
Solution Number: 1184 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Duplicate parameter/variable name" occurs. A parameter name or a variable name has at least two different definitions. For instance, the same variable name appears two or more times for a dependent variable, ...
Out of Memory During Assembly
Solution Number: 1186 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Out of memory during assembly" occurs. This error message indicates that your computer does not have enough RAM memory to assemble the numerical model which you are working with. There are two distinct, ...
Undefined Function Call
Solution Number: 1187 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Undefined function call" occurs. An expression in the model contains an undefined function name. Check that the function name is correct and that the function is in the COMSOL Multiphysics or MATLAB® path.
Internal evaluation error: unexpected NaN encountered
Solution Number: 1188 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Internal evaluation error: unexpected NaN encountered" occurs. This error occurs when Not-a-Number (NaN) values appear unexpectedly. Such values can be the result of floating-point operations such as 0/0, ...
Unsupported Integration Order
Solution Number: 1189 Applies to: COMSOL Multiphysics Versions: All versionsThe error "Unsupported integration order" occurs. The integration order for the numerical quadrature is too high. For triangular elements the order can be up to 10, and for tetrahedral elements the order can be up to ...
Fatal error
Solution Number: 1190 Applies to: COMSOL Multiphysics Versions: All versionsA "Fatal error" occurs. If you receive this error, copy and paste the entire error message and send it to support@comsol.com along with ...
Segregated solver steps do not involve all components
Solution Number: 1191 Applies to: COMSOL Multiphysics Versions: All versionsAn error "Segregated solver steps do not involve all components" occurs. The groups for the segregated solver do not include all dependent variables. One reason for this error could be that some boundary conditions ...
Initial guess leads to undefined function value
Solution Number: 1192 Applies to: COMSOL Multiphysics Versions: All versionsAn error "Initial guess leads to undefined function value" occurs. This error message usually appears when you have set up an expression that returns “not a value”; that is, it is undefined for the initial condition ...
Maximum number of linear iterations reached
Solution Number: 1193 Applies to: COMSOL Multiphysics Versions: All versionsAn error "Maximum number of linear iterations reached" occurs. If you get this error, the iterative linear system solver did not converge due to a bad initial guess or a bad preconditioner. To avoid the error, increase ...
Singular Matrix
Solution Number: 1194 Applies to: COMSOL Multiphysics Versions: All versionsAn error "Singular matrix" occurs. The system matrix (Jacobian matrix or stiffness matrix) is singular, so the solver cannot invert it. Usually this means that the system is underdetermined. Check that all equations ...