no appropriate default constructor available

**wysota** · 19th June 2011, 20:01

What about the part you cut out? Is there a constructor for the class?

**yazan** · 19th June 2011, 20:22

no there is no constructor.
should not qt be portable. as i have seen one must change his code to get it compiled in win (in my case). i have solved another problem, witch i didn't have in linux.

**stampede** · 19th June 2011, 20:34

How is the member variable ui declared ? You have some kind of forward declaration? Can you post the content of graphform.h ?

**SixDegrees** · 19th June 2011, 20:42

Are you using the same version of Qt/Creator on both systems?

Are you attempting to use automatically generated files created on Linux under Windows?

Have you done a complete 'make clean' of your project and regenerated everything from scratch?

Are you sure this code compiled under Linux? 'cause it doesn't look like it should; there's no constructor corresponding to the object you're trying to construct in the initialization routine.

To answer the question you've repeated several times now: yes, Qt code is, for the most part, portable without change between Linux and Windows. The only exceptions are sections of code that are clearly platform-dependent such as calls to Windows or Linux OS routines or similar resources. I've ported several large programs between the two systems and have never once had to rewrite code.

**stampede** · 19th June 2011, 21:04

But I think there is a default, auto-generated no-argument constructor like for any other C++ class without other constructors, so new Ui::graphForm should be ok.
I agree with SixDegrees, you should rebuild everything from scratch.