I'm currently learning Qt by working through examples in the ebook "C+ GUI Programming with Qt 4, Second Edition".
The first example is a "Hello World" application. Following the steps in the example I've been able to create the following files:
- hello.cpp, by typing out the provided code.
- hello.pro, by using OS X Terminal command "qmake -project".
- hello.xcodeproj and info.plist by using command "qmake hello.pro"
However, I am unable to create "hello.app"
The command "make" yields:
"make: *** No targets specified and no makefile found. Stop."
The command "make hello" yields:
g++ hello.cpp -o hello
hello.cpp:1:24: error: QApplication: No such file or directory
hello.cpp:2:18: error: QLabel: No such file or directory
hello.cpp: In function ‘int main(int, char**)’:
hello.cpp:6: error: ‘QApplication’ was not declared in this scope
hello.cpp:6: error: expected `;' before ‘app’
hello.cpp:7: error: ‘QLabel’ was not declared in this scope
hello.cpp:7: error: ‘label’ was not declared in this scope
hello.cpp:7: error: expected type-specifier before ‘QLabel’
hello.cpp:7: error: expected `;' before ‘QLabel’
hello.cpp:9: error: ‘app’ was not declared in this scope
make: *** [hello] Error 1
While I can't create "hello.app" from the terminal with these two commands, I can create it by simply opening Xcode and pressing the button "Build and Go".
Can someone tell me why in the world these two commands don't work? And how I can make the "hello.app" from the terminal?
Thanks!
