(C++) Undefined reference to 'boost::system::get_system_category()' (using Qt Creator)

 

link error (BEI 5).

 

One of the versions of Undefined reference to 'boost::system::get_system_category()', encountered when using Qt Creator.

 

 

 

 

Full error message

 

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/MyFolder/main.o:: In function '__static_initialization_and_destruction_0': /usr/include/boost/system/error_code.hpp:205: error: undefined reference to 'boost::system::get_system_category()' /usr/include/boost/system/error_code.hpp:206: error: undefined reference to 'boost::system::get_generic_category()' /usr/include/boost/system/error_code.hpp:211: error: undefined reference to 'boost::system::get_generic_category()' /usr/include/boost/system/error_code.hpp:212: error: undefined reference to 'boost::system::get_generic_category()' /usr/include/boost/system/error_code.hpp:213: error: undefined reference to 'boost::system::get_system_category()' :: error: collect2: ld returned 1 exit status

 

 

 

 

 

Technical facts

 

Application type(s)

• Desktop application

Operating system(s) or programming environment(s)

• Ubuntu 10.04 (lucid)

IDE(s):

• Qt Creator 2.0.0

Project type:

• Console application

C++ standard:

• C++98

Compiler(s):

• G++ 4.4.5

Libraries used:

• Boost: version 1.40
• Qt: version 4.7.0 (32 bit)

 

 

 

 

 

Qt project file

 

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#------------------------------------------------- # # Project created by QtCreator 2010-08-02T13:45:48 # #------------------------------------------------- QT += core QT -= gui TARGET = CppFile CONFIG += console CONFIG -= app_bundle TEMPLATE = app SOURCES += main.cpp

 

 

 

 

 

Source code

 

If you want to work with Boost.Asio:

 

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#include <boost/asio.hpp>

 

Or if you want to work with Boost.Filesystem:

 

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#include <boost/filesystem.hpp>

 

 

 

 

 

Solution

 

Add the following line to the Qt project file:

 

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LIBS += -lboost_system