Vrml2egg conversion issues

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Im trying to convert some vrml models i have (.wrl) to egg format, as a preliminary test to see if the panda3d engine is right for me. Sadly the conversion fails with

Error in standardNodes.wrl at line 25:
exposedField SFNode material NULL

I know its a valid VRML2.0 file, so it’s definitely the vrml2egg script. I’ve tried it with several vrml models now, from different source and i couldn’t get a single one to convert correctly! What are the requirements so that this conversion works? There is no info anywhere in the docs afaik

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I got exactly the same issue here.
After trying to execute .\vrml2egg.exe .\myfile.wrl in terminal I get the error:

Reading ./myfile.wrl
    Error in standardNodes.wrl at line 25:
      exposedField SFNode material          NULL
    Error in standardNodes.wrl at line 26:
      exposedField SFNode texture           NULL
    Internal error--unable to parse VRML.
    Errors in conversion.

I tried with several other vrml (2.0) sample files but none of them work and I always got this error. The vrml file appears correctly in Windows Print3D viewer though.

Any idea?