What is the reason of getting error: "selected processor does not support 'dsb 0xf' in Thumb Mode" in Atolic Studio 9.1.0, when any controller is selected in STMCubeMX5.6.0?

[GBehe]

I am a first time user of ST microcontrollers. I had just selected the MCU, and with (or) without even configuring anything in STMcubeMX, after generating the project, I got quite a numbers of the above kind of error messages. I did not write anything in the code and just build it. This happened even for different MCU selections.

Thank you.