I just had my project working, but now it doesn't want to open the dynamic lybrary, after some editing of the filesystem structure, and routing it to a new project. Everything is in place, however, it can't open the library.
E 0:00:00:0323 Can't open dynamic library: /home/lou/Programming/Godot/HexWorld/bin/x11/libhexworld.so. Error: /home/lou/Programming/Godot/HexWorld/bin/x11/libhexworld.so: undefined symbol: _ZN5godot6HexMap8_hexTileE
<C Source> drivers/unix/os_unix.cpp:428 @ open_dynamic_library()