CODEWITHSUNDEEP
c++qtdllqt-creatorfilenotfoundexception
Jack
Jack

Reputation: 16724

Not found include <QtCore/qglobal.h>

So I'm trying to create a dll using QT creator. I went to new project -> libary -> C++ libary -> choose. It generated automatically a header file with global prefix and a include header that can't be found:

#include <QtCore/qglobal.h>

give the error:

error: QtGlobal: No such file or directory

I find that this header is being included to use Q_DECL_EXPORT macro so I searched where this is defined: here. So I did #include <QtGlobal> header but get same error.

What's the source of error and how can I fix this?

Upvotes: 2

Views: 20757

Answers (4)

yuchang xu
yuchang xu

Reputation: 1

Add a QTDIR to the system environment variable ,restart VS and refer to $(QTDIR) in the VS project configuration

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Upvotes: -1

Amit Rathore
Amit Rathore

Reputation: 1

The QT creator created the project with the following line in the .pro file: I had to remove/commented using # the whole line below 

# QT -= core gui

Upvotes: 0

Jack
Jack

Reputation: 16724

Found the solution!

The QT creator created the project with the following line in the .pro file:

 QT -= core gui

Note the -= operator, this was preventing the linking of core library then the not found of #include <QtCore/qglobal.h> just removed the core from that line and it compiled fine.

Upvotes: 1

user23573
user23573

Reputation: 2569

You probably need to add the following to your *.pro file:

QT += core

Upvotes: 3

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