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Make mistakes: Missing Included in C ++ Script?

I was just helped on how to compile this script a few minutes ago on SO, but I managed to get errors. I'm just a beginner in C ++ and have no idea what erros means or how to fix it.

This is a script . I read the comments of some users that they changed parts #include

, but that seems to be exactly what the script has, see this comment . 

[root@localhost wkthumb]# qmake-qt4 && make
g++ -c -pipe -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/lib/qt4/mkspecs/linux-g++ -I. -I/usr/include/QtCore -I/usr/include/QtGui -I/usr/include -I. -I. -I. -o main.o main.cpp
main.cpp:5:20: error: QWebView: No such file or directory
main.cpp:6:21: error: QWebFrame: No such file or directory
main.cpp:8: error: expected constructor, destructor, or type conversion before ‘*’ token
main.cpp:11: error: ‘QWebView’ has not been declared
main.cpp: In function ‘void loadFinished(bool)’:
main.cpp:18: error: ‘view’ was not declared in this scope
main.cpp:18: error: ‘QWebSettings’ has not been declared
main.cpp:19: error: ‘QWebSettings’ has not been declared
main.cpp:20: error: ‘QWebSettings’ has not been declared
main.cpp: In function ‘int main(int, char**)’:
main.cpp:42: error: ‘view’ was not declared in this scope
main.cpp:42: error: expected type-specifier before ‘QWebView’
main.cpp:42: error: expected `;' before ‘QWebView’
make: *** [main.o] Error 1

I have a web kit on my Fedora Core 10 machine: qt-4.5.3-9.fc10.i386 qt-Devel-4.5.3-9.fc10.i386

Thanks everyone for the help

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2 answers


The error message indicates that the compiler cannot find what you are trying to include, i.e. <QWebView>

... A way to tell the compiler where to look is with a flag -I

to indicate the directories included (they are not recursive).

You are currently installing the following sources:

  • -I / USR / Library / Qt4 / mkspecs / Linux-g ++
  • -I.
  • -I / usr / include / QtCore
  • -I / usr / include / QtGui
  • -I / usr / include


You need to find where QWebView

on your system and add the include path to the command line (or set QWebView to one of the above).

General note. When you get a lot of errors like this, focus on the first or second. Later bugs (for example ‘QWebView’ has not been declared

) are likely to be resolved by fixing the missing include bug.

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main.cpp:18: error: ‘view’ was not declared in this scope

It looks like namespaces must be specified in the code. Read about namespaces.



main.cpp:20: error: ‘QWebSettings’ has not been declared

There is no type definition that may be missing.

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