I installed simgrid according to instruction in INSTALL file:
cmake -DCMAKE_INSTALL_PREFIX=~/SimGrid -Denable_maintainer_mode=off -Denable_java=on -Denable_scala=off -Denable_lua=off -Denable_smpi=on -Denable_model-checking=off
make
sudo make install
But I can't find msg.h file in include directory:
What did I make incorrectly?
you are definitely not using a 3.13 version of SimGrid but at most a 3.11. I'm certain because the file you are using (msg/msg.h) does not work anymore since then. Plus, 3.13 introduces many files that should appear on that screenshot.
Could you please fix your question, or close it ?