build external package [closed]

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Hello

I tried to install the external ROS package cereal_port from the svn http://isr-uc-ros-pkg.googlecode.com/svn/stacks/serial_communication/trunk/cereal_port/

But when i execute the rosmake i got the following error:

[ rosmake ] rosmake starting...                                                            
[ rosmake ] Packages requested are: ['cereal_port', 'roscpp']                              
[ rosmake ] Logging to directory /home/bojan/.ros/rosmake/rosmake_output-20120702-172116   
[ rosmake ] Expanded args ['cereal_port', 'roscpp'] to:
['cereal_port']                    
[ rosmake ] WARNING: The following args could not be parsed as stacks or packages: ['roscpp']
[rosmake-0] Starting >>> cereal_port [ make ]                                              
[ rosmake ] All 21 linesereal_port: 0.5 sec ]                     [ 1 Active 0/1 Complete ]
{-------------------------------------------------------------------------------
  mkdir -p bin
  cd build && cmake -Wdev -DCMAKE_TOOLCHAIN_FILE=`rospack find rosbuild`/rostoolchain.cmake  ..
  [rosbuild] Building package cereal_port
  Failed to invoke /opt/ros/fuerte/bin/rospack deps-manifests cereal_port
  [rospack] Error: package/stack cereal_port depends on non-existent package roscpp


  CMake Error at /opt/ros/fuerte/share/ros/core/rosbuild/public.cmake:129 (message):


    Failed to invoke rospack to get compile flags for package 'cereal_port'.
    Look above for errors from rospack itself.  Aborting.  Please fix the
    broken dependency!

  Call Stack (most recent call first):
    /opt/ros/fuerte/share/ros/core/rosbuild/public.cmake:203 (rosbuild_invoke_rospack)
    CMakeLists.txt:12 (rosbuild_init)


  -- Configuring incomplete, errors occurred!
-------------------------------------------------------------------------------}
[ rosmake ] Output from build of package cereal_port written to:
[ rosmake ]    /home/bojan/.ros/rosmake/rosmake_output-20120702-172116/cereal_port/build_output.log
[rosmake-0] Finished <<< cereal_port [FAIL] [ 0.53 seconds ]                               
[ rosmake ] Halting due to failure in package cereal_port. 
[ rosmake ] Waiting for other threads to complete.
[ rosmake ] Results:                                                                       
[ rosmake ] Built 1 packages with 1 failures.

Any Help please¿