unable to build a example program (Echo Plugin Example ) in qt

[srikanth]

am trying to build the (Echo Plugin Example) program in qt , but unable to build the file ,
i think there is problem with my pro file , but don't know how can i fix this .

tools/echoplugin/echowindow/echointerface.h
tools/echoplugin/echowindow/echowindow.cpp
tools/echoplugin/echowindow/echowindow.h
tools/echoplugin/plugin/echoplugin.cpp
tools/echoplugin/plugin/echoplugin.h
tools/echoplugin/echowindow/main.cpp
tools/echoplugin/echoplugin.pro
tools/echoplugin/echowindow/echowindow.pro
tools/echoplugin/plugin/plugin.pro

this example contains this files i created all .cpp and .h file in a required folder with the help of example

but confused to do qmake so did qmake at (tools/echoplugin ) this path , and a error is showing when i tries to build the file
1>plugin\echoplugin.h(15): error : Undefined interface

please help me to get out from this

i think there is a problem with qmake , i observed in example there are 3 .pro files
but am generating 1 .pro file at (tools/echoplugin ) this path

(sorry for my english), any help is appreciated.

[Ratzz]

@srikanth

You should open tools/echoplugin/echoplugin.pro pro file

[srikanth]

@Ratzz that file is looks like this when i qmake it

TEMPLATE = app
TARGET =
DEPENDPATH += . echowindow plugin
INCLUDEPATH += .

Input

HEADERS += echowindow/echointerface.h
echowindow/echowindow.h
plugin/echoplugin.h
SOURCES += echowindow/echowindow.cpp echowindow/main.cpp plugin/echoplugin.cpp

but actually in example file this is be like this

TEMPLATE = subdirs
SUBDIRS = echowindow
plugin

and i didn't have the remaining two . pro files how can i build this example file please help me

[Ratzz]

Here is the exact same zip file (entire sample )

[srikanth]

@Ratzz but where can i build that file ,
according to my understand ,we have to do two things to build the program
1, qmake -project ( to generate .pro file)
2,qmake -t vcapp ( to create a project on visual studio)

now i need to know where i have to use this command qmake -t vcapp

[Ratzz]

How are you building your project? Qt Creator ?
There is a .pro file already?

[srikanth]

@Ratzz yeah already there is a .pro file , bu my question is how can i combine all the 2 projects

am doing like this in echowindow folder am doing like this qmake -t vcapp

and in plugin folder qmake -t vclib

and in echoplugin folder qmake -t vcapp
after doing this now struck here , what can i do now

[VRonin]

go in tools/echoplugin call qmake (no arguments) then call nmake (if you use MSVC compiler) that will build everything.

The TEMPLATE = subdirs will take care of building all the subprojects