diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1b54075
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+iq_gnc/
+ROS_controll/
+launch/
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 120000
index 0000000..2016816
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1 @@
+/opt/ros/noetic/share/catkin/cmake/toplevel.cmake
\ No newline at end of file
diff --git a/class_model/src/main.cpp b/class_model/src/main.cpp
index a38094e..02f6373 100755
--- a/class_model/src/main.cpp
+++ b/class_model/src/main.cpp
@@ -36,7 +36,7 @@ int main(int argc, char **argv) {
 
     return 0;
 }
-
+//////////////////////////////////////////////////////
 
 /*
 ThreadGPSClass gps_object;