Because of carelessness, I ran into a ‘problem during linking’ error in Abaqus. The mistake was misspelling a dimensional variable name. That caused the variable used had not been declared.

Although Abaqus allows variables to be used without declaration in VUMAT with the

      include 'vaba_param.inc'

method, it seems not applicable to the array type variables.

The error message is,

Problem during linking – Single Precision Abaqus/Explicit User Subroutines.

This error may be due to a mismatch in the Abaqus user subroutine arguments.

These arguments sometimes change from release to release, so user subroutines   used with a previous release of Abaqus may need to be adjusted.

Hope this can be helpful to someone with the same error. But I think it is NOT the only problem that could trigger this error message.©

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