_icu_lib_le-NOTFOUND

[MeritonKyqyku]

cmake ..
-- Found compatible SWIG version (3.0.12)
-- Building project in dedicated build directory : /root/dff/build
-- Will use -g for debugging -- no
-- input / output stats disabled
-- Compile WITHOUT TwoThreeTree debug information
-- Found ICU libraries:
/usr/lib/x86_64-linux-gnu/libicudata.so
/usr/lib/x86_64-linux-gnu/libicui18n.so
/usr/lib/x86_64-linux-gnu/libicuuc.so
/usr/lib/x86_64-linux-gnu/libicuio.so
_icu_lib_le-NOTFOUND
_icu_lib_lx-NOTFOUND
CMake Error at /usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find ICU (missing: ICU_LIBRARIES) (found version "63.2.0")
Call Stack (most recent call first):
/usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
cmake_modules/FindICU.cmake:178 (find_package_handle_standard_args)
cmake_modules/dff/find_deps.cmake:116 (find_package)
CMakeLists.txt:22 (include)

-- Configuring incomplete, errors occurred!
See also "/root/dff/build/CMakeFiles/CMakeOutput.log".
can you tell me what to do