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I forgot to say that I have also tried with Foxit Reader, for example, and it still says that he cannot open the file...

Hi.

I have installed MikTex and TexMaker, and everything is running smoothly except when I Quickbuild or press F7 to View PDF, when TexMaker tells me "There was an error opening this document. This file cannot be found."
I checked the path for Adobe Reader, it's OK. But it still doesn't work. I ...