Install libphobos2-ldc-shared78 by entering the following commands in the terminal:
sudo apt update sudo apt install libphobos2-ldc-shared78
LLVM D Compiler - Phobos2 Standard library, shared objects
LDC is a compiler for the D programming Language. It is based on the latest DMD frontend and uses LLVM as backend. . This package includes the libraries for the Phobos standard library.