cmake Configuring incomplete, errors occurred

[wired87]

Hi,

while try to follow the following tutorial: https://github.com/fwillett/speechBCI/tree/main/LanguageModelDecoder

...the following error occurred:

[ 33%] No update step for 'glog-populate'
[ 44%] No patch step for 'glog-populate'
[ 55%] No configure step for 'glog-populate'
[ 66%] No build step for 'glog-populate'
[ 77%] No install step for 'glog-populate'
[ 88%] No test step for 'glog-populate'
[100%] Completed 'glog-populate'
[100%] Built target glog-populate
CMake Deprecation Warning at fc_base/glog-src/CMakeLists.txt:1 (cmake_minimum_required):
Compatibility with CMake < 3.5 will be removed from a future version of
CMake.

Update the VERSION argument value or use a ... suffix to tell
CMake that the project does not need compatibility with older versions.

CMake Error at /usr/lib/x86_64-linux-gnu/cmake/gflags/gflags-nonamespace-targets.cmake:37 (message):
Some (but not all) targets in this export set were already defined.

Targets Defined: gflags_nothreads_static

Targets not yet defined:
gflags_shared;gflags_nothreads_shared;gflags_static

Call Stack (most recent call first):
/usr/lib/x86_64-linux-gnu/cmake/gflags/gflags-config.cmake:17 (include)
fc_base/glog-src/CMakeLists.txt:51 (find_package)

-- Configuring incomplete, errors occurred!

Im absolutely new with cmake and so on. So till now i just have played a bit around (removed the targets from txt file, chanhed versions and so on. This is how my cmakelists file looks like currently 8but still facing the same issue):
https://gist.github.com/wired87/a0e1a73c0678dec473c0abb4a8f9a910