Once the Beam Interface were inserted into a comsol model, I couldn't remove it again . If I do that ,two problems would occur. 1) I cannot save the model . when I try to save it , a error box popup in the screen with the message 'Error when serializing reference to: Physics/HermitianBeam (beam) [D] in /frame/rigid beam/list: MList' . 2) I cannot calculate it .a error box popup in the screen with the message 'An unexpected error occurred. See the end of log file for details.
Caused by: java.lang.IllegalStateException: Node is removed: Physics/HermitianBeam (beam) [D] at com.comsol.model.data.Node.getLocation(SourceFile:912) at com.comsol.model.data.Node.getModelPath(SourceFile:935) at com.comsol.model.data.primitive.DReference.toAttribute(SourceFile:147) ... 50 more '
Though I have deleted all the features relevant to Beam Interface. And even more , I have cleared out the comsol model, the error remaining . I want to konw how to fix it . Thank you in advance.