Stateflow compiling error "making simulation target"

Every time compiling a stateflow program I keep getting the same kind of an error (see screenshot). At the same time, stateflow examples and tutorial are working perfectly fine (but when I've repeated tutorial step-by-step the result was an error again). What does it mean?

[Kaustubha Govind]

Is there more to the error message that doesn't show in the image?

Also, are you calling any custom C code in your model?

[vik]

No, that's all. There were only stateflow diagrams, not sure if they use C Code. Frankly, I do have found solution to my problem - everything went fine after I installed 32bit version in the default folder.