Extended log: dropping app into scenario from upstream package

source/ArmarXGui/gui-plugins/ScenarioManager/controller/ScenarioListController.cpp

@@ -42,6 +42,7 @@
 #include <QMessageBox>
 #include <sstream>
 #include <QApplication>
+#include <SimoxUtility/algorithm/string/string_tools.h>
 
 using namespace ScenarioManager;
 using namespace Controller;
@@ -337,13 +338,17 @@ void ScenarioListController::addApplicationsToScenario(
         {
             return;
         }
+
         if (std::find(acceptedApps.begin(), acceptedApps.end(), appPackage->getName()) == acceptedApps.end())
         {
+            const std::string dependenciesStr = simox::alg::join(acceptedApps, ", ");
+
             QMessageBox box;
-            QString message("You cannot drop an App from ");
+            QString message("You cannot drop an app from ");
             message.append(QString::fromStdString(appPackage->getName()));
-            message.append(" into a Scenario from ");
+            message.append(" into a scenario from ");
             message.append(QString::fromStdString(scenario->getPackage()->getName()));
+            message.append(QString::fromStdString(". Package `" + scenario->getPackage()->getName() + "` depends on " + dependenciesStr));
             box.setText(message);
             box.exec();
             return;