Header file not found but added as library in project file and as header file

[CybeX]

Good day

please note: I have decided to take up a project I last worked on a year ago (including C++ dev, so I may be missing something really stupid)

I previously used QTCreator 5.7.1, but upgraded to the latest 5.9.1, so I had to change all my build locations to the new 5.9.1 output location.

Overview of libraries and project

Various libraries named:

• gen_common
• gen_serv
• misc_common
• misc_cli
• cli_gui

to mention a few that are used. Each has its own .h and .cpp files.

misc_common.h is added as an external library to misc_cli.
misc_cli is added as a library to cli_gui.

Problem:
Compiling misc_cli (with misc_common and other libraries added) is successful
Compiling cli_gui (with misc_cli and other libraries added) fails with an error:

Error:

/home/cybex/Projects/project-i/client/cli_gui/cli_gui_log.h:13: In file included from ../cli_gui/cli_gui_log.h:13:0,
/home/cybex/Projects/project-i/client/cli_gui/cli_gui_main.h:12: from ../cli_gui/cli_gui_main.h:12,
/home/cybex/Projects/project-i/client/cli_gui/main.cpp:3: from ../cli_gui/main.cpp:3:
/home/cybex/Projects/project-i/libraries/misc_cli/misc_cli.h:9: error: misc_common.h: No such file or directory
 #include "misc_common.h"
          ^~~~~~~~~~~~~~~

Compile output:

/opt/Qt5.9.1/5.9.1/gcc_64/bin/uic ../cli_gui/cli_gui_log.ui -o ui_cli_gui_log.h
/opt/Qt5.9.1/5.9.1/gcc_64/bin/uic ../cli_gui/cli_gui_main.ui -o ui_cli_gui_main.h
/opt/Qt5.9.1/5.9.1/gcc_64/bin/uic ../cli_gui/cli_dlg_set.ui -o ui_cli_dlg_set.h
g++ -c -pipe -g -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I../cli_gui -I. -I../../libraries/misc_cli -I../../libraries/gen_cli -I../../libraries/gen_common -I../../libraries/netman -I../../libraries/netman -I../../libraries/data_mananger -I../../libraries/data_mananger -I../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug -I../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug -I/opt/Qt5.9.1/5.9.1/gcc_64/include -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtWidgets -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtGui -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtNetwork -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtCore -I. -isystem /usr/include/libdrm -I. -I/opt/Qt5.9.1/5.9.1/gcc_64/mkspecs/linux-g++ -o main.o ../cli_gui/main.cpp
In file included from ../cli_gui/cli_gui_log.h:13:0,
                 from ../cli_gui/cli_gui_main.h:12,
                 from ../cli_gui/main.cpp:3:
../../libraries/misc_cli/misc_cli.h:9:10: fatal error: misc_common.h: No such file or directory
 #include "misc_common.h"
          ^~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:2098: main.o] Error 1
20:24:46: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project cli_gui (kit: Desktop Qt 5.9.1 GCC 64bit)
The kit Desktop Qt 5.9.1 GCC 64bit has configuration issues which might be the root cause for this problem.
When executing step "Make"
20:24:46: Elapsed time: 00:00.

misc_cli header:

#ifndef MISC_CLI_H
#define MISC_CLI_H

#include <QColor>
#include <QString>
#include <QList>

#include "misc_cli_global.h"
#include "misc_common.h"

using namespace misc_common;

namespace misc_cli {

class MISC_CLISHARED_EXPORT misc_cli
    {

//structs 
//enums
//variable declarations 
public:
        misc_cli();
    };


}

#endif // MISC_CLI_H

cli_gui_log header:

#include <QLineEdit>
#include <QDebug>
#include <QtGui>
#include <QPushButton>
#include <QMessageBox>
#include <QDesktopWidget>
#include <QCheckBox>

#include "misc_cli.h"
#include "data_mananger.h"

Q_DECLARE_LOGGING_CATEGORY(log_client_gui_log)

using namespace misc_cli;

namespace Ui {
class cli_gui_log;
}

misc_cli.pro

#-------------------------------------------------
#
# Project created by QtCreator 2017-01-15T21:25:10
#
#-------------------------------------------------

QT       += core gui widgets network

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = cli_gui
TEMPLATE = app


SOURCES += main.cpp\
    cli_gui_main.cpp \
    cli_gui_log.cpp \
    cli_dlg_set.cpp

HEADERS  += \
    cli_gui_main.h \
    cli_gui_log.h \
    cli_dlg_set.h

FORMS    += \
    cli_gui_log.ui \
    cli_gui_main.ui \
    cli_dlg_set.ui

RESOURCES += \
    resources.qrc

QMAKE_LFLAGS += -Wl,-rpath,"'\$$ORIGIN'"


# ============================ MISC_CLI =====================================

# WINDOWS - MINGW



# UNIX - GCC



unix:!macx: LIBS += -L$$PWD/../../libraries/build-misc_cli-Desktop_Qt_5_9_1_GCC_64bit-Debug/ -lmisc_cli

INCLUDEPATH += $$PWD/../../libraries/misc_cli
DEPENDPATH += $$PWD/../../libraries/misc_cli

# =======================================================================

In summary

misc_common <-----> misc_cli ....................OK
misc_cli <-----> cli_gui_log ....................FAIL

Why does this occur, I have absolutely no idea why?

[SGaist]

Hi,

Since your misc_cli headers include files from misc_common, you also have the add that path to the misc_gui project otherwise they can't be found.

As for your hardcoded path, you should rather use OUT_PWD.

[CybeX]

@SGaist Thanks for responding, here is the results from your suggestion:

I have done so, yet it still complains that misc_common.h cannot be found

please note: this error occurs when building the gui application, and not the misc_cli library. When building the misc_cli library which uses misc_common, it compiles correctly, but when comiling the 'misc_gui' application, the error below occurs.

The error (of compiling the gui application) points me to the misc_cli header file highlighting the line

#include "misc_common.h"

and in my 'misc_gui' application, I make use of only the misc_cli.h file as shown below

#include "misc_cli.h"

Here is my 'misc_gui' project file

//...
# ============================ MISC_CLI =====================================

# WINDOWS - MINGW


# UNIX - GCC



unix:!macx: LIBS += -L$$PWD/../../libraries/build-misc_cli-Desktop_Qt_5_9_1_GCC_64bit-Debug/ -lmisc_cli

INCLUDEPATH += $$PWD/../../libraries/misc_cli
DEPENDPATH += $$PWD/../../libraries/misc_cli

# =======================================================================

# ============================ MISC_CLI =====================================

# WINDOWS - MINGW


win32:CONFIG(release, debug|release): LIBS += -L$$PWD/../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug/release/ -lmisc_common
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug/debug/ -lmisc_common

# UNIX - GCC

else:unix: LIBS += -L$$PWD/../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug/ -lmisc_common

INCLUDEPATH += $$PWD/../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug
DEPENDPATH += $$PWD/../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug

# =======================================================================

and compile output reads:

23:22:03: Running steps for project cli_gui...
23:22:03: Configuration unchanged, skipping qmake step.
23:22:03: Starting: "/usr/bin/make" 
g++ -c -pipe -g -Wall -W -D_REENTRANT -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I../cli_gui -I. -I../../libraries/gen_cli -I../../libraries/gen_common -I../../libraries/netman -I../../libraries/netman -I../../libraries/data_mananger -I../../libraries/data_mananger -I../../libraries/misc_cli -I../../libraries/build-misc_common-Desktop_Qt_5_9_1_GCC_64bit-Debug -I/opt/Qt5.9.1/5.9.1/gcc_64/include -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtWidgets -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtGui -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtNetwork -I/opt/Qt5.9.1/5.9.1/gcc_64/include/QtCore -I. -isystem /usr/include/libdrm -I. -I/opt/Qt5.9.1/5.9.1/gcc_64/mkspecs/linux-g++ -o main.o ../cli_gui/main.cpp
In file included from ../cli_gui/cli_gui_log.h:13:0,
                 from ../cli_gui/cli_gui_main.h:12,
                 from ../cli_gui/main.cpp:3:
../../libraries/misc_cli/misc_cli.h:9:10: fatal error: misc_common.h: No such file or directory
 #include "misc_common.h"
          ^~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:2098: main.o] Error 1
23:22:03: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project cli_gui (kit: Desktop Qt 5.9.1 GCC 64bit)
The kit Desktop Qt 5.9.1 GCC 64bit has configuration issues which might be the root cause for this problem.
When executing step "Make"
23:22:03: Elapsed time: 00:00.

[SGaist]

"misc_common.h" is located in the "misc_common" folder, no ? That's the one you have to add to your project.