Manual installation failure - missing files

Hi,

I have problems when trying to install pantheon-files manually (for further development).

I am following the manual in INSTALL file:
bzr branch lp:pantheon-files
cd pantheon-files
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/usr ..
make
sudo make install

This problem comes when processing the last command:
CMake Error at data/cmake_install.cmake:36 (file):
  file INSTALL cannot find
  "/home/tepster/Projects/pantheon-files/build/data/org.pantheon.files.appdata.xml".
Call Stack (most recent call first):
  cmake_install.cmake:38 (include)

Makefile:71: recipe for target 'install' failed
make: *** [install] Error 1

The required file (data/org.pantheon.files.appdata.xml) really doesn't exist, not even wherever in the parent directory.

How can I solve this?

Thanks!