Make error

[huawei-zzy]

when I first cd ..../MadRadar/MadRadar_USRP/build and run make, the result shows:

[  4%] Building CXX object src/CMakeFiles/BufferHandler.dir/BufferHandler.cpp.o
[  8%] Linking CXX static library libBufferHandler.a
[  8%] Built target BufferHandler
[ 12%] Building CXX object src/sensing_subsystem/CMakeFiles/CrossCorr.dir/CrossCorr.cpp.o
[ 16%] Linking CXX static library libCrossCorr.a
[ 16%] Built target CrossCorr
[ 20%] Building CXX object src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/SpectrogramHandler.cpp.o
In file included from /opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.cpp:1:
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:30:14: fatal error: eigen3/Eigen/Dense: No such file or directory
   30 |     #include "eigen3/Eigen/Dense"
      |              ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/build.make:76: src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/SpectrogramHandler.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:1278: src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/all] Error 2
make: *** [Makefile:166: all] Error 2

Then I run apt-get install libeigen3-dev
After I successfully installed libeigen3-dev(3.3.7-2) and run make again, the result shows:

Consolidate compiler generated dependencies of target BufferHandler
[  8%] Built target BufferHandler
Consolidate compiler generated dependencies of target CrossCorr
[ 16%] Built target CrossCorr
[ 20%] Building CXX object src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/SpectrogramHandler.cpp.o
In file included from /opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.cpp:1:
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp: In member function ‘void SpectrogramHandler_namespace::SpectrogramHandler<data_type>::compute_linear_model()’:
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1057:24: error: ‘Vector’ is not a member of ‘Eigen’; did you mean ‘VectorXd’?
 1057 |                 Eigen::Vector<double,2> b;
      |                        ^~~~~~
      |                        VectorXd
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1057:31: error: expected primary-expression before ‘double’
 1057 |                 Eigen::Vector<double,2> b;
      |                               ^~~~~~
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1072:28: error: ‘Vector’ is not a member of ‘Eigen’; did you mean ‘VectorXd’?
 1072 |                     Eigen::Vector<double,Dynamic> Y(n);
      |                            ^~~~~~
      |                            VectorXd
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1072:35: error: expected primary-expression before ‘double’
 1072 |                     Eigen::Vector<double,Dynamic> Y(n);
      |                                   ^~~~~~
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1076:25: error: there are no arguments to ‘Y’ that depend on a template parameter, so a declaration of ‘Y’ must be available [-fpermissive]
 1076 |                         Y(j) = detected_frequencies.buffer[indicies[j]];
      |                         ^
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1076:25: note: (if you use ‘-fpermissive’, G++ will accept your code, but allowing the use of an undeclared name is deprecated)
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1082:21: error: ‘b’ was not declared in this scope
 1082 |                     b = (X.transpose() * X).ldlt().solve(X.transpose() * Y);
      |                     ^
/opt/zeyu/MadRadar/MadRadar_USRP/src/sensing_subsystem/SpectrogramHandler.hpp:1082:74: error: ‘Y’ was not declared in this scope
 1082 |                     b = (X.transpose() * X).ldlt().solve(X.transpose() * Y);
      |                                                                          ^
make[2]: *** [src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/build.make:76: src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/SpectrogramHandler.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:1278: src/sensing_subsystem/CMakeFiles/SpectrogramHandler.dir/all] Error 2
make: *** [Makefile:166: all] Error 2

Do you know what's the problem and how to solve it?
(Maybe it's because of the version of eigen3, could you please let me know your eigen3 version?)