diff --git a/src/test/gtest_problem.cpp b/src/test/gtest_problem.cpp
index c56f80ed314e26a0924ce0fa6687f5aeda31fbe2..d2b0ef0152083a7fac41377d376e502745fd5451 100644
--- a/src/test/gtest_problem.cpp
+++ b/src/test/gtest_problem.cpp
@@ -79,8 +79,6 @@ TEST(Problem, Installers)
     SensorBasePtr    S = P->installSensor   ("ODOM 3D", "odometer",        xs,         wolf_root + "/src/examples/sensor_odom_3D.yaml");
 
     // install processor tracker (dummy installation under an Odometry sensor -- it's OK for this test)
-//    ProcessorBasePtr pt = P->installProcessor("IMAGE LANDMARK", "ORB landmark tracker", "odometer", wolf_root + "/src/examples/processor_image_ORB.yaml");
-//    ProcessorBasePtr pt = P->installProcessor("ODOM 3D", "odometer processor", "odometer", wolf_root + "/src/examples/processor_odom_3D.yaml");
     ProcessorBasePtr pt = std::make_shared<ProcessorTrackerFeatureDummy>(ProcessorTrackerFeatureDummy(5, 10));
     S->addProcessor(pt);
 
@@ -220,7 +218,6 @@ TEST(Problem, StateBlocks)
     ASSERT_EQ(P->getStateBlockList().size(),                2 + 3);
     ASSERT_EQ(P->getStateBlockNotificationList().size(),    2 + 3);
 
-//    ProcessorBasePtr pt = P->installProcessor("IMAGE LANDMARK",     "ORB landmark tracker", "camera",   wolf_root + "/src/examples/processor_image_ORB.yaml");
     ProcessorBasePtr pt = std::make_shared<ProcessorTrackerFeatureDummy>(ProcessorTrackerFeatureDummy(5, 10));
     St->addProcessor(pt);
     ProcessorBasePtr pm = P->installProcessor("ODOM 3D",            "odom integrator",      "odometer", wolf_root + "/src/examples/processor_odom_3D.yaml");
@@ -250,7 +247,6 @@ TEST(Problem, Covariances)
 
     SensorBasePtr    Sm = P->installSensor   ("ODOM 3D", "odometer",xs, wolf_root + "/src/examples/sensor_odom_3D.yaml");
     SensorBasePtr    St = P->installSensor   ("CAMERA", "camera",   xs, wolf_root + "/src/examples/camera_params_ueye_sim.yaml");
-//    ProcessorBasePtr pt = P->installProcessor("IMAGE LANDMARK",     "ORB landmark tracker", "camera",   wolf_root + "/src/examples/processor_image_ORB.yaml");
     ProcessorBasePtr pt = std::make_shared<ProcessorTrackerFeatureDummy>(ProcessorTrackerFeatureDummy(5, 10));
     St->addProcessor(pt);
     ProcessorBasePtr pm = P->installProcessor("ODOM 3D",            "odom integrator",      "odometer", wolf_root + "/src/examples/processor_odom_3D.yaml");