when i run "rosdep install -r --from-paths .",it has some error .

[boombangbang1]

ERROR: the following packages/stacks could not have their rosdep keys resolved
to system dependencies:
iai_kinect2: Cannot locate rosdep definition for [kinect2_registration]
kinect2_viewer: Cannot locate rosdep definition for [kinect2_bridge]
kinect2_bridge: Cannot locate rosdep definition for [kinect2_registration]
Continuing to install resolvable dependencies...
#All required rosdeps installed successfully
Can you help me.

[jpalves]

Try this
in src folder
git clone https://github.com/jpalves/iai_kinect2.git

cd ..
rosdep install --from-paths src --ignore-src -r -y