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I had to buy a 32bit computer to run 4.0
and a 64bit for 5.xx
in some way this is your problem
did you try exporting and importing

I have used 4.01 in 32-bit windows 7 and 64 bit windows 10. Works fine in both

I installed 5.02 in Windows 10 64 bit and it gave this error during project database conversion

I will try to install 5.02 in Windows 7 32 bit. Let's see how it goes

Hi,

I am trying to upgrade from SDU 4.01 to 5.02/5.32/5.42

Whenever I open my project in the new SDU, whether it be 5.02 or 5.32 or 5.42, it gives an error for the Project Database Conversion and says that the Project files may be corrupt.

I have the screenshot for this. Any suggestions why this is occurring? and what is the solution?

P.S: The same project opens fine in SDU 4.01

Thanks