(C++) QCanvas: No such file or directory

 

Compile error.

 

 

 

 

 

Full error message

 

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/MyFolder/main.cpp:1: error: QCanvas: No such file or directory

 

 

 

 

 

 

Cause

 

Operating system: Ubuntu 10.04 LTS Lucid Lynx

IDE: Qt Creator 2.0.0

Project type: Console Application

Compiler: G++ 4.4.1

Libraries used:

• Qt: version 4.7.0 (32 bit)

 

 

 

 

 

Qt project file

 

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#------------------------------------------------- # # Project created by QtCreator 2010-07-26T10:46:45 # #------------------------------------------------- QT += core QT -= gui TARGET = CppCompileErrorQCanvasNoSuchFileOrDirectory CONFIG += console CONFIG -= app_bundle TEMPLATE = app SOURCES += main.cpp

 

 

 

 

 

Source code

 

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#include <QCanvas> int main() { }

 

• Download the Qt Creator project 'CppCompileErrorQCanvasNoSuchFileOrDirectory' with this error (zip)

 

 

 

 

 

Solution

 

As far as I can understand, QCanvas is a Qt3 class that is obsolete in Qt Creator 2.0.0.

 

The code below, although #including the proper header file, will give the compile error ':: error: collect2: ld returned 1 exit status'.

 

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#include <qt3/qcanvas.h> int main() { }