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what are you designing in? graphical design? if your file is huge then thats your problem, you should have broken it down more maybe
try deleting the "db" folder.
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Thank you, Tricky.
Yes, I am using schematic method.
I deleted the "db" folder but it didn't change anything. I noticed that in the project navigator, there is a tdf file pointing out the location in the db folder. Do you think it is good to delete the tdf file from the project navigator? I am wondering the tdf file is automatically included when Quartus is doing compilation.
What do you mean by "broken down"? You meant hierarchical design? If you meant it, I already did it that way; Clicking some schematic blocks, it leads inside the block. And inside the block, there are other sub-blocks, and I can go inside by clicking the blocks again until I meet unit elements (primitives or mega-functions) which Altera provided for design.
Thanks for the comments!
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