PDFhummus error: PDFWriter.h: No such file or directory. I need help to use PDFhummus with QT Creator

JonB

@ronaldon
QT Creator is an IDE (editor, debugger). It has nothing to do with the errors you are vaguely reporting. That would be down to whatever compiler/linker you are using. Your errors sound like they are coming from #include statements in your sources. So either your include paths are wrong/unspecified, or the header files are not where you think they are.

Nobody can give you more information from the description you give without more specifics.

ronaldon

I need developer a tool from scratch for handler PDF files with PDF Hummus and QT create. I have build PDFHummus source code and add the PDFWriter.lib to my QT project througth: options -> add library -> external libraies but I have problems describd above. Can you help me?

eyllanesc

@ronaldon share your .pro

ronaldon

@eyllanesc
This is my .pro:

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    pdfwriter1steps.cpp

HEADERS += \
    pdfwriter1steps.h

FORMS += \
    pdfwriter1steps.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/./ -lPDFWriter
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/./ -lPDFWriter
else:unix: LIBS += -L$$PWD/./ -lPDFWriter

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

JonB

@ronaldon said in PDFhummus error: PDFWriter.h: No such file or directory. I need help to use PDFhummus with QT Creator:

pdfhummus error: PDFWriter.h: No such file or directory

The same error for the others resources: #include <PDFWriter.h>, #include <PDFPage.h>, #include <PDFWriter.h>, #include <PDFPageInput.h>

So where are these header files actually located, and what have you done about making your INCLUDEPATH include the directory so that the compiler can find them? I don't see anything in your .pro for this?

ronaldon

@JonB ,
I have build PDFHummus source code and add the PDFWriter.lib to my QT project througth: options -> add library -> external libraies.

JonB

@ronaldon
That seems to have no answer for what I asked you about where the header files are and how you have told the compile process to find them on include path. Repeating that you have built PDFWriter does not advance you any further.

ronaldon

@JonB
I think I understand now, I shouldn't use PDFWriter.lib, instead i should add to my project the PDF Hummus fonts. It is that true?

JonB

@ronaldon
No.

SGaist

@ronaldon said in PDFhummus error: PDFWriter.h: No such file or directory. I need help to use PDFhummus with QT Creator:

@JonB
I think I understand now, I shouldn't use PDFWriter.lib, instead i should add to my project the PDF Hummus fonts. It is that true?

Hi,

As @JonB requested: where is the header of that library located on your hard drive ?

That path is missing from your INCLUDEPATH variable.

ronaldon

@SGaist
The header PDFWriter.h is in "D:\WORKSPACE\PDFWriter\PDFWriter" and my project is in "C:\Users\Usuario\Documents\QTProjects\TestPDFhummus"

ronaldon

This post is deleted!

SGaist

Build the library properly and use it rather than trying to do it by hand like you do.

ronaldon

@SGaist
How can i made that? In the begin i try compile and import the files .lib but not work for me.

ronaldon

@SGaist
I receive this error now:

C:\Users\Usuario\Documents\QTProjects\build-TestPDFhummus-Desktop_Qt_5_15_2_MinGW_64_bit-Debug..\TestPDFhummus\main.cpp:16: error: undefined reference to PDFWriter::PDFWriter()' debug/main.o: In function qMain(int, char**)':
C:\Users\Usuario\Documents\QTProjects\build-TestPDFhummus-Desktop_Qt_5_15_2_MinGW_64_bit-Debug/../TestPDFhummus/main.cpp:16: undefined reference to `PDFWriter::PDFWriter()'

Now, my .pro is:

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    testpdfhummus.cpp

HEADERS += \
    testpdfhummus.h

FORMS += \
    testpdfhummus.ui

unix:!macx: LIBS += -L$$PWD/./pdf_hummus/Build/PDFWriter/ -lPDFWriter

INCLUDEPATH += $$PWD/./pdf_hummus/PDFWriter
DEPENDPATH += $$PWD/./pdf_hummus/PDFWriter

unix:!macx: PRE_TARGETDEPS += $$PWD/./pdf_hummus/Build/PDFWriter/libPDFWriter.a

unix:!macx: LIBS += -L$$PWD/./pdf_hummus/Build/FreeType/ -lFreeType

INCLUDEPATH += $$PWD/./pdf_hummus/FreeType/include
DEPENDPATH += $$PWD/./pdf_hummus/FreeType/include

unix:!macx: PRE_TARGETDEPS += $$PWD/./pdf_hummus/Build/FreeType/libFreeType.a

unix:!macx: LIBS += -L$$PWD/./pdf_hummus/Build/LibJpeg/ -lLibJpeg

INCLUDEPATH += $$PWD/./pdf_hummus/LibJpeg
DEPENDPATH += $$PWD/./pdf_hummus/LibJpeg

unix:!macx: PRE_TARGETDEPS += $$PWD/./pdf_hummus/Build/LibJpeg/libLibJpeg.a

unix:!macx: LIBS += -L$$PWD/./pdf_hummus/Build/LibTiff/ -lLibTiff

INCLUDEPATH += $$PWD/./pdf_hummus/LibTiff
DEPENDPATH += $$PWD/./pdf_hummus/LibTiff

unix:!macx: PRE_TARGETDEPS += $$PWD/./pdf_hummus/Build/LibTiff/libLibTiff.a

unix:!macx: LIBS += -L$$PWD/./pdf_hummus/Build/ZLib/ -lZlib

INCLUDEPATH += $$PWD/./pdf_hummus/ZLib
DEPENDPATH += $$PWD/./pdf_hummus/ZLib

unix:!macx: PRE_TARGETDEPS += $$PWD/./pdf_hummus/Build/ZLib/libZlib.a

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

DISTFILES += \

JonB

@ronaldon

Please when pasting globs of code/.pro file like this learn to use the forum's Code tag to enclose the literal stuff and make it readable by others.
In the text you show, which line are you claiming is the one your MinGW will use to add the necessary options for linking with your PDFWriter library? (You might also look at the link line generated which causes the error you quote.)

ronaldon

@JonB
I'm sorry for the missing code tag, i made the correction. I don't know what MinGW will use. I started my first QT project theses days, i just need learn how configure the external library for develop my routine.

JonB

@ronaldon
It's much better with the code tag! :)

I'm afarid this is not my area so you'll have to wait for someone else to comment, but: I do not think you are linking against the PDFWriter library.

unix:!macx: LIBS += -L$$PWD/./pdf_hummus/Build/PDFWriter/ -lPDFWriter

I think you need that line, or similar, for your MinGW. And I assume that line is only applied if you are compiling for unix (and not macx), whereas as you are Windows.

ronaldon

This post is deleted!

ronaldon

@JonB
My .pro now:

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    testpdfhummus.cpp

HEADERS += \
    testpdfhummus.h

FORMS += \
    testpdfhummus.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

#win32:CONFIG(release, debug|release): LIBS += -L$$PWD/pdf_hummus/PDFWriter/release/ -lPDFWriter
#else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/pdf_hummus/PDFWriter/debug/ -lPDFWriter

#INCLUDEPATH += $$PWD/pdf_hummus/PDFWriter
#DEPENDPATH += $$PWD/pdf_hummus/PDFWriter

#win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/pdf_hummus/PDFWriter/release/libPDFWriter.a
#else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/pdf_hummus/PDFWriter/debug/libPDFWriter.a
#else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$PWD/pdf_hummus/PDFWriter/release/PDFWriter.lib
#else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$PWD/pdf_hummus/PDFWriter/debug/PDFWriter.lib

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/pdf_hummus/PDFWriter/release/ -lPDFWriter
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/pdf_hummus/PDFWriter/debug/ -lPDFWriter
else:macx: LIBS += -L$$PWD/pdf_hummus/PDFWriter/ -lPDFWriter

INCLUDEPATH += $$PWD/pdf_hummus/PDFWriter
DEPENDPATH += $$PWD/pdf_hummus/PDFWriter

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/pdf_hummus/FreeType/release/ -lFreeType
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/pdf_hummus/FreeType/debug/ -lFreeType
else:macx: LIBS += -L$$PWD/pdf_hummus/FreeType/ -lFreeType

INCLUDEPATH += $$PWD/pdf_hummus/FreeType/Release
DEPENDPATH += $$PWD/pdf_hummus/FreeType/Release

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/pdf_hummus/LibJpeg/release/ -lLibJpeg
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/pdf_hummus/LibJpeg/debug/ -lLibJpeg
else:macx: LIBS += -L$$PWD/pdf_hummus/LibJpeg/ -lLibJpeg

INCLUDEPATH += $$PWD/pdf_hummus/LibJpeg/Release
DEPENDPATH += $$PWD/pdf_hummus/LibJpeg/Release

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/pdf_hummus/LibTiff/release/ -lLibTiff
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/pdf_hummus/LibTiff/debug/ -lLibTiff
else:macx: LIBS += -L$$PWD/pdf_hummus/LibTiff/ -lLibTiff

INCLUDEPATH += $$PWD/pdf_hummus/LibTiff/Release
DEPENDPATH += $$PWD/pdf_hummus/LibTiff/Release

win32:CONFIG(release, debug|release): LIBS += -L$$PWD/pdf_hummus/ZLib/release/ -lZlib
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/pdf_hummus/ZLib/debug/ -lZlib
else:macx: LIBS += -L$$PWD/pdf_hummus/ZLib/ -lZlib

INCLUDEPATH += $$PWD/pdf_hummus/ZLib/Release
DEPENDPATH += $$PWD/pdf_hummus/ZLib/Release

And the image of error:
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