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Forum Update on Monday, May 27th 2025

Error: qt 'iostream' file not found

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  • R Offline
    R Offline
    ROVguy
    wrote on last edited by
    #1

    Hello.
    I'm having an issue with QT on Ubuntu 18.04 and win10.

    When I start a New Project under the Welcome tab, under Non-QT Project, Plain C++ Application I get errors with all my #include statements. The project starts with "#include <iostream>" which the program attaches an error to.

    Can anyone tell me what's the problem and how do I solve it?

    aha_1980A 1 Reply Last reply
    0
    • mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by mrjj
      #2

      Hi
      Does other types of project works ?
      Like a Qt GUI application?

      Most likely something wrong with your compiler kit but its odd you get this in
      both Win and Linux..

      What Qt version did you download and install ?

      1 Reply Last reply
      2
      • R ROVguy

        Hello.
        I'm having an issue with QT on Ubuntu 18.04 and win10.

        When I start a New Project under the Welcome tab, under Non-QT Project, Plain C++ Application I get errors with all my #include statements. The project starts with "#include <iostream>" which the program attaches an error to.

        Can anyone tell me what's the problem and how do I solve it?

        aha_1980A Offline
        aha_1980A Offline
        aha_1980
        Lifetime Qt Champion
        wrote on last edited by
        #3

        hi @rovguy,

        • which Creator version is that?
        • can you actually compile your app?

        Regards

        Qt has to stay free or it will die.

        1 Reply Last reply
        3

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