VTK/CommonProblems
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- error: forward declaration of ‘struct vtkXYZ’
Problem
<source lang="cpp"> actor->GetProperty()->SetColor(0, 1, 0); </source>
error: forward declaration of ‘struct vtkProperty’
Explanation The GetProperty() function returns a vtkProperty object. Even though you didn't need to reference it explicitly, the compiler still needs to know what it is!
Solution This is solved by simply including vtkProperty.h:
<source lang="cpp">
- include <vtkProperty.h>
</source>
