Error with CLI library

[FillePiano]

I get this error when trying to build the project:

[2/2] Linking CXX executable src/intro
FAILED: src/intro
: && /usr/bin/c++ -O2 -g -DNDEBUG -fsanitize=address,leak,undefined src/CMakeFiles/intro.dir/main.cpp.o -o src/i
d9a98f4c14b042a0cc7d6c663f5/lib/libspdlog.a  /home/obm/.conan/data/fmt/8.1.1/_/_/package/0dab009e164b61a28f957a6
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o: warning: relocation against `_ZTVN3CLI10ConfigBaseE' in read-o
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x558): undefined reference to `typeinfo for CLI::Co
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x5b8): undefined reference to `typeinfo for CLI::Co
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x618): undefined reference to `typeinfo for CLI::Co
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x678): undefined reference to `typeinfo for CLI::Co
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x6d8): undefined reference to `typeinfo for CLI::Co
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x738): more undefined references to `typeinfo for C
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x1638): undefined reference to `typeinfo for CLI::F
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x1698): undefined reference to `typeinfo for CLI::C
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x1cf8): undefined reference to `typeinfo for CLI::C
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o:(.data.rel+0x1d58): undefined reference to `typeinfo for CLI::F
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o: in function `CLI::ConfigBase::ConfigBase()':
/home/obm/.conan/data/cli11/2.2.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/CLI/ConfigFwd.hpp
/usr/bin/ld: /home/obm/.conan/data/cli11/2.2.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/CLI/
/usr/bin/ld: /home/obm/.conan/data/cli11/2.2.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/CLI/
/usr/bin/ld: src/CMakeFiles/intro.dir/main.cpp.o: in function `CLI::Formatter::Formatter()':
/home/obm/.conan/data/cli11/2.2.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/CLI/FormatterFwd.
/usr/bin/ld: /home/obm/.conan/data/cli11/2.2.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/CLI/
/usr/bin/ld: /home/obm/.conan/data/cli11/2.2.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/CLI/
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

Also, I am new to C++. Every time I build, will I run the build.sh script? Or is there a faster way to build?