"Symbol ‘null’ at (1) has no IMPLICIT type" when compiling

[haizhou0410]

Hello everyone, when I compile idwarp, I met a error that says as follows. Does anyone know how to fix this? Thank you very much!

readUnstructuredCGNS.F90:185:85:
  185 |                                             zones(iZone)%sections(sec)%elemConn, NULL, ierr)
      |                                                                                     1
Error: Symbol ‘null’ at (1) has no IMPLICIT type; did you mean ‘cg_null’?
make[3]: *** [../..//Rules.mk:2: readUnstructuredCGNS.o] Error 1

Steps to reproduce issue

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Current behavior

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Expected behavior

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Code versions

• Operating System: ubuntu
• Python:
• OpenMPI:
• CGNS: stable version
• PETSc:
• Compiler: gfortran
• This repository:

[eirikurj]

Hi, assuming you are using CGNS 4.4, then we officially dont support it at the moment. However, there is an open PR #90 that will address this. For future reference, please take the time to populate the issue template appropriately, including full versions of each package, as this helps us address the issue quicker.