STM32CubeMX generates code but not project files .project... Why?

[eBirdman]

Hello I am using CubeMX successfully for some time. Now got into strange situation when after configuration is done and trying to generate project files it actually does and reports successful generation , generated code is there but the project folder is missing .project file and .cproject file so it is impossible to open it in IDE... what can cause it?

[eBirdman]

I find out the answer: when "Generate Under Root" in project settings is not checked, then project files .project and .cproject are not get generated... what is this for and why this option even gets included if the consequent attempt "open project" fails -I have no idea. In other words if this option is not checked, opening the project fails.