Bulk endpoint compile error for stm32f103xb project for v0257

when I enable BULK_ENDPOINT macro definition with the project of stm32f103xb for v0257, it happened error, like this :
is there anyone how to fix it, thanks.

Start by reproducing the v0257 build for the stm32f103xb project with BULK_ENDPOINT enabled and inspect the compiler error shown in the issue image. Identify the affected project source or build entry point from that failure; done means the project compiles successfully with the macro enabled.

Written by the indexing model from the issue text.