How to add Qt libraries to visual studio

c++ qt visual-c++ visual-c++-2017
MH2538 picture MH2538 · Mar 11, 2018 · Viewed 10.6k times · Source

I have a source with VC++ 2017 I receive the error "Error C1083 Cannot open include file: 'QtCore/QMap': No such file or directory " when i try compile the project. I download Qt libraries and add to Include project but the problem exist. Which directory of Qt of i had to add to project to resolve error?

this is header of my code that generate error

#include <QtCore/QMap>
#include <QtCore/QString>
#include <QtCore/QList>

Answer

Jepessen picture Jepessen · Mar 11, 2018

You need to update your project. Go to the project properties by right-clicking on it in Solution Explorer and then select Properties. Then:

  • In C/C++->General->Additional Include Directories you must set the Qt installation include path;
  • In Linker->General->Additional Library Directories you must add the path of .libs files of your qt installation;
  • In Linker->Input->Additional Dependencies you must put the name of .lib files that you need in order to build the project.

If it's a Qt project, you should also have the Qt plugin installed, in order to work properly with moc and other Qt features.

In alternative (that I suggest) you can create a CMake project and open in in Visual Studio.

Related questions

what does __declspec(dllimport) really mean?

I saw the Qt source code like this: class Q_CORE_EXPORT QBasicAtomicInt { public: ... }; Which Q_CORE_EXPORT macro defines like below: define Q_DECL_IMPORT __declspec(dllimport) So what does __declspec(dllimport) really mean?

Read More
How to convert int to QString?

Is there a QString function which takes an int and outputs it as a QString?

Read More
How to convert QString to std::string?

I am trying to do something like this: QString string; // do things... std::cout << string << std::endl; but the code doesn't compile. How to output the content of qstring into the console (e.g. for debugging …

Read More