When debugging, do it with a Sive J-link launch, and the following error occurs:
“Makefile:34: *** Unable to find BSP for sifive-hifive1-revb, expected to find”
It used to be okay, but suddenly an error occurs. Please help me. 
When debugging, do it with a Sive J-link launch, and the following error occurs:
“Makefile:34: *** Unable to find BSP for sifive-hifive1-revb, expected to find”
It used to be okay, but suddenly an error occurs. Please help me.