Key=value Error

Hi BLavery,
I am getting this error when compiling the code.

Error reading file (C:\Users\Syed Numan\AppData\Local\Arduino15\packages\STM32\hardware\stm32\1.5.0\boards.txt:45): Invalid line format, should be 'key=value'

Error compiling for board Generic STM32F030 series.

kindly suggest any missing option that I have missed to implement.
regards,
Niradat.