我的mdk5出现这个问题，怎么解决

D:toolsmdk5ARMCMSIS14.5.0CMSISIncludecore_cm4.h(129): error:  #35: #error directive: "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
        #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
..UserSourceposition.c: 0 warnings, 1 error
compiling STM32f30x_it.c...
compiling i2c.c...
compiling quarternion.c...
D:toolsmdk5ARMCMSIS14.5.0CMSISIncludecore_cm4.h(129): error:  #35: #error directive: "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
        #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
..UserSourcequarternion.c: 0 warnings, 1 error
compiling sliding_filter.c...
compiling mpu9250.c...
D:toolsmdk5ARMCMSIS14.5.0CMSISIncludecore_cm4.h(129): error:  #35: #error directive: "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
        #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
..UserSourcempu9250.c: 0 warnings, 1 error
compiling delay_dwt.c...
compiling flash.c...
compiling spi.c...
compiling spi_slave.c...
compiling uart.c...
compiling ringbuf.c...
compiling arm_cos_f32.c...
D:toolsmdk5ARMCMSIS14.5.0CMSISIncludecore_cm4.h(129): error:  #35: #error directive: "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
        #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
....LibrariesCMSISDSP_LibSourceFastMathFunctionsarm_cos_f32.c: 0 warnings, 1 error
compiling arm_sin_f32.c...
D:toolsmdk5ARMCMSIS14.5.0CMSISIncludecore_cm4.h(129): error:  #35: #error directive: "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
        #error "Compiler generates FPU instructions for a device without an FPU (check __FPU_PRESENT)"
....LibrariesCMSISDSP_LibSourceFastMathFunctionsarm_sin_f32.c: 0 warnings, 1 error
".Outputstm32f3.axf" - 5 Error(s), 0 Warning(s).
Target not created.
Build Time Elapsed:  00:00:11