I follow the instructions in this site https://kheafield.com/code/kenlm/ for downloading KenLM Language Model Toolkit but i have problem when i try run 'make -j2' the error: c++: internal compiler error: Killed (program cc1plus) Please submit a full bug report, with preprocessed source if appropriate. See for instructions. lm/CMakeFiles/kenlm_benchmark.dir/build.make:62: recipe for target 'lm/CMakeFiles/kenlm_benchmark.dir/kenlm_benchmark_main.cc.o' failed make[2]: *** [lm/CMakeFiles/kenlm_benchmark.dir/kenlm_benchmark_main.cc.o] Error 4 CMakeFiles/Makefile2:1877: recipe for target 'lm/CMakeFiles/kenlm_benchmark.dir/all' failed make[1]: *** [lm/CMakeFiles/kenlm_benchmark.dir/all] Error 2 Makefile:138: recipe for target 'all' failed make: *** [all] Error 2