what happens after executing the command roslaunch ros4mat.launch

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did you get this?Am i doing write?

tanisha@tanisha-HS:~/ros4matm/ros4mat$ roslaunch ros4mat.launch

... logging to /home/tanisha/.ros/log/a8ac17a0-6cbd-11e5-9bdb-4025c271955c/roslaunch-tanisha-HS-26655.log
Checking log directory for disk usage. This may take awhile.

Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://tanisha-HS:60012/

SUMMARY

========

PARAMETERS

 * /camera/depth/rectify_depth/interpolation
 * /camera/depth_registered/rectify_depth/interpolation
 * /camera/disparity_depth/max_range
 * /camera/disparity_depth/min_range
 * /camera/disparity_depth_registered/max_range
 * /camera/disparity_depth_registered/min_range
 * /camera/driver/depth_camera_info_url
 * /camera/driver/depth_frame_id
 * /camera/driver/depth_registration
 * /camera/driver/device_id
 * /camera/driver/rgb_camera_info_url
 * /camera/driver/rgb_frame_id
 * /rosdistro
 * /rosversion

NODES

/camera/depth/

metric (nodelet/nodelet)

 metric_rect (nodelet/nodelet)

   points (nodelet/nodelet)

 rectify_depth (nodelet/nodelet)

  /camera/rgb/

  debayer (nodelet/nodelet)


rectify_color (nodelet/nodelet)

rectify_mono (nodelet/nodelet)
  /

E_ADC (ros4mat/E_ADC)

  E_Camera (ros4mat/E_Camera)

  E_Computer (ros4mat/E_Computer)

  E_IMU (ros4mat/E_IMU)

  E_Kinect (ros4mat/E_Kinect)

   E_Logico (ros4mat/E_Logico)

   E_Serial (ros4mat/E_Serial)

   E_StereoCamera (ros4mat/E_StereoCamera)

  camera_base_link (tf/static_transform_publisher)

  camera_base_link1 (tf/static_transform_publisher)

  camera_base_link2 (tf/static_transform_publisher)

  camera_base_link3 (tf/static_transform_publisher)

  camera_nodelet_manager (nodelet/nodelet)

   gpsd_client (gpsd_client/gpsd_client)

   hokuyo_node (hokuyo_node/hokuyo_node)

   openni_node (openni_camera/openni_node)

  /camera/

  disparity_depth (nodelet/nodelet)

 disparity_depth_registered (nodelet/nodelet)

 driver (nodelet/nodelet)

 points_xyzrgb_depth_rgb (nodelet/nodelet)

 register_depth_rgb (nodelet/nodelet)

 /camera/ir/

 rectify_ir (nodelet/nodelet)

 /camera/depth_registered/

 metric (nodelet/nodelet)

 metric_rect (nodelet/nodelet)

 rectify_depth (nodelet/nodelet)

 ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found

ERROR: cannot launch node of type [ros4mat/E_IMU]: ros4mat
ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [ros4mat/E_ADC]: ros4mat

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [gpsd_client/gpsd_client]: gpsd_client

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [ros4mat/E_Computer]: ros4mat

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [ros4mat/E_Serial]: ros4mat

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [ros4mat/E_Logico]: ros4mat

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [ros4mat/E_Camera]: ros4mat

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [hokuyo_node/hokuyo_node]: hokuyo_node

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [ros4mat/E_StereoCamera]: ros4mat

ROS path [0]=/opt/ros/groovy/share/ros

ROS path [1]=/opt/ros/groovy/share

ROS path [2]=/opt/ros/groovy/stacks

ERROR: cannot launch node of type [ros4mat/E_Kinect]: ros4mat

ROS path [0 ...