Issue with Installing example/perplexity Using CMake

[eugene-giter]

I encountered the following error while installing example/perplexity. How can I resolve it?

(llama) user:~/llama.cpp/examples/perplexity/build$ make
Consolidate compiler generated dependencies of target llama-perplexity
[ 50%] Linking CXX executable llama-perplexity
/usr/bin/ld: cannot find -lcommon: No such file or directory
/usr/bin/ld: cannot find -lllama: No such file or directory
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/llama-perplexity.dir/build.make:97: llama-perplexity] Error 1
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/llama-perplexity.dir/all] Error 2
make: *** [Makefile:136: all] Error 2