Solarus Build Error

CMake Error at gui/CMakeLists.txt:8 (find_package):
  By not providing "FindQt5Core.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt5Core", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt5Core" with any
  of the following names:

    Qt5CoreConfig.cmake
    qt5core-config.cmake

  Add the installation prefix of "Qt5Core" to CMAKE_PREFIX_PATH or set
  "Qt5Core_DIR" to a directory containing one of the above files.  If
  "Qt5Core" provides a separate development package or SDK, be sure it has
  been installed.


-- Configuring incomplete, errors occurred!
See also "/tmp/yaourt-tmp-jan/aur-solarus/src/solarus-1.5.0/CMakeFiles/CMakeOutput.log".
See also "/tmp/yaourt-tmp-jan/aur-solarus/src/solarus-1.5.0/CMakeFiles/CMakeError.log".