Says I am missing a .dll file that is there

[bijan311]

I just installed QT4 and i read this tutorial for a hello world program. When i compile it it say I do not have the QTCore4.dll file so the .exe file cannot run. I then looked in the QT folder and i found QTCore4.dll in the bin folder. Here is my code if it matters.

#include <QApplication>
#include <QPushButton>
 
int main(int argc, char *argv[])
{
    QApplication app(argc,argv);
 
    QPushButton test("I am testing my first GUI application");
    test.show();
 
    return app.exec();
}

#include <QApplication>
#include <QPushButton>

int main(int argc, char *argv[])
{
    QApplication app(argc,argv);

    QPushButton test("I am testing my first GUI application");
    test.show();

    return app.exec();
}

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I am also using the Code::Blocks IDE with the MinGW compiler. Thanks.

[squidge]

Is the directory containing the DLL in your PATH ?

[bijan311]

I don't know, how do i check?

[squidge]

Start->Run, type "cmd", hit enter. When block box appears, type "echo %PATH%" and press enter.

[bijan311]

ok it says, "C:\Windows\system32;C:\Windows\System32\Wbem;C:\W indows\System32\WindowsPowerShell\v.1.0\;C:\Progra m Files\Quicktime\QTSystem

[schnitzel]

ok it says, "C:\Windows\system32;C:\Windows\System32\Wbem;C:\W indows\System32\WindowsPowerShell\v.1.0\;C:\Progra m Files\Quicktime\QTSystem

try running your app from the Qt Command Prompt which sets up the required environment variables and path for you.

[bijan311]

Ok when I did that it said "The procedure entry point _ZN7QString16fromAscii_helperEPKci could not be located in the dynamic link library QtCore4.dll"

[schnitzel]

Please start a Qt command prompt and show us what is printed to the console.

[bijan311]

Is this what you are talking about?

[schnitzel]

now I'd like to see the entire path from this command prompt - just type 'path'. Also cd into the folder where your app is and run it. If you can show all this in a screenshot like you did.

[bijan311]

Here it is.