Compiling own QtCreator Plugin fails - qt

Question

I'm trying to create my own QtCreator Plugin by following this guide.
So I cloned this repo and checked the v2.8.1 tagged commit out (c3ed746c).
Then I copied my QtCreator 2.8.1 directory and created a new Qt Creator Plugin project.
Then I create a new file in my project directory called MyPlugin.json.
If I try to compile my plug in I get this error:
e:\qtprojects\build-myplugin-desktop_qt_5_1_1_msvc2012_32bit-debug\debug../../MyPlugin/mypluginplugin.h(6) : fatal error C1083: Cannot open include file: "extensionsystem/iplugin.h": No such file or directory
jom: E:\QtProjects\build-MyPlugin-Desktop_Qt_5_1_1_MSVC2012_32bit-Debug\Makefile.Debug [debug\moc_mypluginplugin.obj] Error 2
jom: E:\QtProjects\build-MyPlugin-Desktop_Qt_5_1_1_MSVC2012_32bit-Debug\Makefile [debug] Error 2
10:56:51: The process "E:\Qt\Qt5\Tools\QtCreator\bin\jom.exe" exited with code 2.
Error while building/deploying project myplugin (kit: Desktop Qt 5.1.1 MSVC2012 32bit)
When executing step 'Make'
10:56:51: Elapsed time: 00:01.
What do I have to do to make it work?
This are the source files:
myplugin.pro
DEFINES += MYPLUGIN_LIBRARY
# MyPlugin files
SOURCES += mypluginplugin.cpp
HEADERS += mypluginplugin.h \
myplugin_global.h \
mypluginconstants.h
# Qt Creator linking
## set the QTC_SOURCE environment variable to override the setting here
QTCREATOR_SOURCES = $$(QTC_SOURCE)
isEmpty(QTCREATOR_SOURCES):QTCREATOR_SOURCES=E:/QtProjects/_QtCreatorPlugIns/qt-creator
## set the QTC_BUILD environment variable to override the setting here
IDE_BUILD_TREE = $$(QTC_BUILD)
isEmpty(IDE_BUILD_TREE):IDE_BUILD_TREE=E:/QtProjects/_QtCreatorPlugIns/QtCreator
## uncomment to build plugin into user config directory
## <localappdata>/plugins/<ideversion>
## where <localappdata> is e.g.
## "%LOCALAPPDATA%\QtProject\qtcreator" on Windows Vista and later
## "$XDG_DATA_HOME/data/QtProject/qtcreator" or "~/.local/share/data/QtProject/qtcreator" on Linux
## "~/Library/Application Support/QtProject/Qt Creator" on Mac
# USE_USER_DESTDIR = yes
PROVIDER = MyCompany
include($$QTCREATOR_SOURCES/src/qtcreatorplugin.pri)
myplugin_global.h
#ifndef MYPLUGIN_GLOBAL_H
#define MYPLUGIN_GLOBAL_H
#include <QtGlobal>
#if defined(MYPLUGIN_LIBRARY)
# define MYPLUGINSHARED_EXPORT Q_DECL_EXPORT
#else
# define MYPLUGINSHARED_EXPORT Q_DECL_IMPORT
#endif
#endif // MYPLUGIN_GLOBAL_H
mypluginconstants.h
#ifndef MYPLUGINCONSTANTS_H
#define MYPLUGINCONSTANTS_H
namespace MyPlugin {
namespace Constants {
const char ACTION_ID[] = "MyPlugin.Action";
const char MENU_ID[] = "MyPlugin.Menu";
} // namespace MyPlugin
} // namespace Constants
#endif // MYPLUGINCONSTANTS_H
mypluginplugin.h
#ifndef MYPLUGIN_H
#define MYPLUGIN_H
#include "myplugin_global.h"
#include <extensionsystem/iplugin.h>
namespace MyPlugin {
namespace Internal {
class MyPluginPlugin : public ExtensionSystem::IPlugin
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "MyPlugin.json")
public:
MyPluginPlugin();
~MyPluginPlugin();
bool initialize(const QStringList &arguments, QString *errorString);
void extensionsInitialized();
ShutdownFlag aboutToShutdown();
private slots:
void triggerAction();
};
} // namespace Internal
} // namespace MyPlugin
#endif // MYPLUGIN_H
mypluginplugin.cpp
#include "mypluginplugin.h"
#include "mypluginconstants.h"
#include <coreplugin/icore.h>
#include <coreplugin/icontext.h>
#include <coreplugin/actionmanager/actionmanager.h>
#include <coreplugin/actionmanager/command.h>
#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/coreconstants.h>
#include <QAction>
#include <QMessageBox>
#include <QMainWindow>
#include <QMenu>
#include <QtPlugin>
using namespace MyPlugin::Internal;
MyPluginPlugin::MyPluginPlugin()
{
// Create your members
}
MyPluginPlugin::~MyPluginPlugin()
{
// Unregister objects from the plugin manager's object pool
// Delete members
}
bool MyPluginPlugin::initialize(const QStringList &arguments, QString *errorString)
{
// Register objects in the plugin manager's object pool
// Load settings
// Add actions to menus
// Connect to other plugins' signals
// In the initialize method, a plugin can be sure that the plugins it
// depends on have initialized their members.
Q_UNUSED(arguments)
Q_UNUSED(errorString)
QAction *action = new QAction(tr("MyPlugin action"), this);
Core::Command *cmd = Core::ActionManager::registerAction(action, Constants::ACTION_ID,
Core::Context(Core::Constants::C_GLOBAL));
cmd->setDefaultKeySequence(QKeySequence(tr("Ctrl+Alt+Meta+A")));
connect(action, SIGNAL(triggered()), this, SLOT(triggerAction()));
Core::ActionContainer *menu = Core::ActionManager::createMenu(Constants::MENU_ID);
menu->menu()->setTitle(tr("MyPlugin"));
menu->addAction(cmd);
Core::ActionManager::actionContainer(Core::Constants::M_TOOLS)->addMenu(menu);
return true;
}
void MyPluginPlugin::extensionsInitialized()
{
// Retrieve objects from the plugin manager's object pool
// In the extensionsInitialized method, a plugin can be sure that all
// plugins that depend on it are completely initialized.
}
ExtensionSystem::IPlugin::ShutdownFlag MyPluginPlugin::aboutToShutdown()
{
// Save settings
// Disconnect from signals that are not needed during shutdown
// Hide UI (if you add UI that is not in the main window directly)
return SynchronousShutdown;
}
void MyPluginPlugin::triggerAction()
{
QMessageBox::information(Core::ICore::mainWindow(),
tr("Action triggered"),
tr("This is an action from MyPlugin."));
}
Q_EXPORT_PLUGIN2(MyPlugin, MyPluginPlugin)
Directories
E:\QtProjects\_QtCreatorPlugIns> tree
├───qt-creator
│ ├───bin
│ ├───dist
│ ├───doc
│ ├───lib
│ ├───qbs
│ ├───scripts
│ ├───share
│ ├───srcn64interrupt
│ └───testsster
├───QtCreator
│ ├───bin
│ ├───lib0
│ └───share

Answer 1

If you're a linux user, you can download qtcreator-dev. But, i don't know how it works on Windows.
Open terminal
Type : sudo apt-get install qtcreator-dev
Done.