[SOLVED] Can't add custom class!

[Buckets]

I think I had the issue you are having before.
I ended up removing my build folder, cleaned the project, then rebuilt it and the linkage error went away.

[dbzhang800]

Have you added the hex.cpp file to your project?

[bareil76]

Yes.. hex.cpp is in the project tree.

[SGaist]

Hi,

In the project tree doesn't mean it gets compiled. Do you list in the sources in your pro file ?

[bareil76]

yes.. it was listed.

[SGaist]

Can you show your pro file ?

[bareil76]

@#-------------------------------------------------

Project created by QtCreator 2012-09-04T13:47:46

#-------------------------------------------------
QT += gui declarative
QT += core gui
#DEFINES +=QT_DISABLE_DEPRECATED_BEFORE=0x040800 #0x050100 to disable functions deprecated in Qt 5.1 and earlier
greaterThan(QT_MAJOR_VERSION, 4): QT += printsupport

TARGET = MyApp
TEMPLATE = app

SOURCES += main.cpp
mainwindow.cpp
hid_pnp.cpp
qcustomplot.cpp
windows/hid.c
hex.cpp

HEADERS += mainwindow.h
hid_pnp.h
qcustomplot.h
hidapi.h
hex.h

FORMS += mainwindow.ui

#-------------------------------------------------

Add the Signal11's hidapi library that was

created

#-------------------------------------------------
macx: LIBS += -L../HIDAPI/mac -lHIDAPI
#win32: LIBS += -L../HIDAPI/windows -lHIDAPI
unix: !macx: LIBS += -L../HIDAPI/linux -lHIDAPI

#-------------------------------------------------

Make sure to add the required libraries or

frameoworks for the hidapi to work depending on

what OS is being used

#-------------------------------------------------
macx: LIBS += -framework CoreFoundation -framework IOkit
win32: LIBS += -lSetupAPI
unix: !macx: LIBS += -lusb-1.0

#-------------------------------------------------

Make sure output directory for object file and

executable is in the correct subdirectory

#-------------------------------------------------
macx {
DESTDIR = mac
OBJECTS_DIR = mac
MOC_DIR = mac
UI_DIR = mac
RCC_DIR = mac
}
unix: !macx {
DESTDIR = linux
OBJECTS_DIR = linux
MOC_DIR = linux
UI_DIR = linux
RCC_DIR = linux
}
win32 {
DESTDIR = windows
OBJECTS_DIR = windows
MOC_DIR = windows
UI_DIR = windows
RCC_DIR = windows
}

@

[bareil76]

I tried again.. and got the same error.

[SGaist]

Did you delete the build directory and do a full rebuild ?

[bareil76]

I just tried and no it doesn't work.

It should be so simple!

[SGaist]

Are all your files in the same folder ?

[bareil76]

Yes.. they are.

Thank you for your help by the way!

[SGaist]

Are you also calling this function in hid_pnp ?

[bareil76]

In hid_pnp.. I setup an instance of the class by using

CHexManager HexManager;

so calling HexManager.LoadHexFile(); in hid_pnp... will produce the error.

[SGaist]

Then let's go step by step, comment all call to that function and build again, once it does, re-add them one by one.

[bareil76]

THANK YOU!!!!

I got it... I don,t know why I did this. But I had included #include "hid_pnp.h" in my hex.c file.

Going to the strict minimum was a good idea.

[SGaist]

You're welcome !

Since you have it working now, don't forget to update the thread title prepending [solved] so other forum users may know a solution has been found :)