Problem while launching ModelSim simulation from Quartus

Hello,

I'm newbie in Quartus and am starting to learn Quartus design flow.
Certain documents I've found on the web, mention that one can run ModelSim simulation from Quartus.
Unfortunately it didn't work properly.
Here is my setup:

• Parent module: module_parent.vhd
• Child module: module_child.vhd
• Testbench: tb.vhd (not included in the design, but specified in Settings/EDA Tool Settings/Simulation/Compile Test Bench)

When I launch ModelSim, only parent module (module_parent) appears in the work library, not module_child, neither tb.
Here is fragment of the Transcript window of ModelSim:

Error (suppressible): {path_to_module_parent(line_number_where_module_ch ild_is_instantiated)} : (vcom-1195) Cannot find expanded name : "work.module_child"
Error: {path_to_module_parent(line_number_where_module_ch ild_is_instantiated)} : Unknown expanded name.

Thanks in advance.

Pavel