diff --git a/.gitmodules b/.gitmodules
index 79eeadd..7491c44 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "libs/whisper-com"]
 	path = libs/whisper-com
-	url = https://dev-gitea.ftewa.ti.unibw-hamburg.de/hwinkel/whisper-com.git
\ No newline at end of file
+	url = ssh://git@dev-gitea.ftewa.ti.unibw-hamburg.de:12000/hwinkel/whisper-com.git
\ No newline at end of file
diff --git a/include/SimCore/Messages/Track.hpp b/include/SimCore/Messages/Track.hpp
index 1fdfa85..6aeead9 100644
--- a/include/SimCore/Messages/Track.hpp
+++ b/include/SimCore/Messages/Track.hpp
@@ -44,6 +44,8 @@ namespace SimCore {
 
 
         public:
+
+            Track(){};
             /**
             * @brief a cuntructor that builds the object from a received message 
             * @param std::string the received thring from the line 
diff --git a/src/SimCore/Sensor.cpp b/src/SimCore/Sensor.cpp
index 3248b6d..870e1b6 100644
--- a/src/SimCore/Sensor.cpp
+++ b/src/SimCore/Sensor.cpp
@@ -23,7 +23,7 @@ namespace SimCore {
         incommingTrackMessages =  std::make_shared<WHISPER::threadSafeQueue<SimCore::Track>>();
     
 
-        GroundTruthUDPService_ =  std::make_shared<WHISPER::InternalUDPService>(OwnID.getParentNumber(),OwnID.getNumber(),WHISPER::SENSOR,8000,SimCore::UtilFunctions::implode(ip,'.'),ownIP);    
+        GroundTruthUDPService_ =  std::make_shared<WHISPER::InternalUDPService>(OwnID.getParentNumber(),OwnID.getNumber(),WHISPER::SENSOR,GroundTruthPort_,SimCore::UtilFunctions::implode(ip,'.'),ownIP);    
         ParentUDPService_ =  std::make_shared<WHISPER::InternalUDPService>(OwnID.getParentNumber(),OwnID.getNumber(),WHISPER::SENSOR,ParentPort,ParentIPAddress_,ownIP);