Problems installing ICub with YARP - cmake

Question

I'm trying to follow the create icub makerfiles http://wiki.icub.org/wiki/Linux:Installation_from_sources but I have an error, and I've already followed all the steps
This is the error and I don't know what to do now...
CMake Error at CMakeLists.txt:15 (find_package):
By not providing "FindYARP.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "YARP", but
CMake did not find one.
Could not find a package configuration file provided by "YARP" (requested
version 3.2.0) with any of the following names:
YARPConfig.cmake
yarp-config.cmake
Add the installation prefix of "YARP" to CMAKE_PREFIX_PATH or set
"YARP_DIR" to a directory containing one of the above files. If "YARP"
provides a separate development package or SDK, be sure it has been
installed.

Answer 1

CMake is looking for the YARPConfig.cmake file, that cannot be found in one of the searched paths.
If you didn't install YARP, that's the problem.
If you did, then it depends on how you installed it.
If you installed YARP from the binary packages, it should be found automatically.
If you built YARP from sources and installed it in a "standard" location (i.e. /usr or /usr/local on Linux) it should be found automatically.
if you built YARP from sources and installed it in a non-standard location (<installation prefix>) you can choose one of these options :
Set the CMAKE_PREFIX_PATH environment variable to <installation prefix> (recommended if you are planning to install more than one package in the same path).
Set the YARP_DIR environment variable to the <installation prefix>/lib/cmake/YARP
Pass the -DYARP_DIR=<installation prefix>/lib/cmake/YARP to cmake
Run ccmake instead of cmake, search for YARP_DIR and set it to <installation prefix>/lib/cmake/YARP
If you built YARP from sources (in the folder <build folder>) and did not install it, you can choose one of these options:
Set the YARP_DIR environment variable to the <build folder>
Pass the -DYARP_DIR=<build folder> to cmake
Run ccmake instead of cmake, search for YARP_DIR and set it to <build folder>