quartus compiling troubles

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I am using win Xp pro;

When I run quartus compilation after modify a desing, it seems to compile correctly but it doen't seems to be able to create a new .sof file.

in the propject folder, i find only the pervious version of the *.sof file.

could anyone help me?

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Hi,

which Device and Quartus Version did you use ?

Kind regards

GPK