diff --git a/examples/tutorials/gettingStarted/gsQt/part3/main.cpp b/examples/tutorials/gettingStarted/gsQt/part3/main.cpp
index 4967f6db2fd..db3eba7e4ae 100644
--- a/examples/tutorials/gettingStarted/gsQt/part3/main.cpp
+++ b/examples/tutorials/gettingStarted/gsQt/part3/main.cpp
@@ -83,9 +83,9 @@ void Notepad::quit()
         qApp->quit();
 }
 
-int main(int argv, char **args)
+int main(int argc, char **argv)
 {
-    QApplication app(argv, args);
+    QApplication app(argc, argv);
 
     Notepad notepad;
     notepad.show();
diff --git a/examples/tutorials/gettingStarted/gsQt/part3/part3.pro b/examples/tutorials/gettingStarted/gsQt/part3/part3.pro
index d194acb2e20..c89f95fbfa6 100644
--- a/examples/tutorials/gettingStarted/gsQt/part3/part3.pro
+++ b/examples/tutorials/gettingStarted/gsQt/part3/part3.pro
@@ -1,4 +1,5 @@
 
+QT += widgets
 SOURCES = main.cpp
 
 # install
diff --git a/examples/tutorials/gettingStarted/gsQt/part4/main.cpp b/examples/tutorials/gettingStarted/gsQt/part4/main.cpp
index ca4e7dcbfbf..f5ec5bea5ec 100644
--- a/examples/tutorials/gettingStarted/gsQt/part4/main.cpp
+++ b/examples/tutorials/gettingStarted/gsQt/part4/main.cpp
@@ -94,9 +94,9 @@ void Notepad::save()
 
 }
 
-int main(int argv, char **args)
+int main(int argc, char **argv)
 {
-    QApplication app(argv, args);
+    QApplication app(argc, argv);
 
     Notepad notepad;
     notepad.show();
diff --git a/examples/tutorials/gettingStarted/gsQt/part4/part4.pro b/examples/tutorials/gettingStarted/gsQt/part4/part4.pro
index 3de03accc00..94c7abdf39f 100644
--- a/examples/tutorials/gettingStarted/gsQt/part4/part4.pro
+++ b/examples/tutorials/gettingStarted/gsQt/part4/part4.pro
@@ -1,4 +1,5 @@
 
+QT += widgets
 SOURCES = main.cpp
 
 # install
diff --git a/examples/tutorials/gettingStarted/gsQt/part5/main.cpp b/examples/tutorials/gettingStarted/gsQt/part5/main.cpp
index 6d87ca7ba69..25ee5d0fbb1 100644
--- a/examples/tutorials/gettingStarted/gsQt/part5/main.cpp
+++ b/examples/tutorials/gettingStarted/gsQt/part5/main.cpp
@@ -120,9 +120,9 @@ void Notepad::save()
     }
 }
 
-int main(int argv, char **args)
+int main(int argc, char **argv)
 {
-    QApplication app(argv, args);
+    QApplication app(argc, argv);
 
     Notepad notepad;
     notepad.show();
diff --git a/examples/tutorials/gettingStarted/gsQt/part5/part5.pro b/examples/tutorials/gettingStarted/gsQt/part5/part5.pro
index 711cac212ac..4631449e714 100644
--- a/examples/tutorials/gettingStarted/gsQt/part5/part5.pro
+++ b/examples/tutorials/gettingStarted/gsQt/part5/part5.pro
@@ -1,4 +1,5 @@
 
+QT += widgets
 SOURCES = main.cpp
 
 # install