Looking for assistance.

I'm trying to install update firmware on my Ender 3 Pro with the 1.1.5 silent board. I have the board type set to Sanguino like every post or video on the subject says to I don't know which programmer to use. I've tried ArduinoISP, USBtinyISP, and USBasp. but either way I keep getting error telling me to select and different board type.

This is the error message:

Arduino: 1.8.11 (Windows Store 1.8.29.0) (Windows 10), Board: "Sanguino, ATmega644 or ATmega644A (16 MHz)"

In file included from c:\users\proje\appdata\local\temp\arduino_build_334764\sketch\src\pins\stm32/pins_BTT_SKR_MINI_E3_V1_2.h:24:0,

                 from c:\users\proje\appdata\local\temp\arduino_build_334764\sketch\src\pins\pins.h:485,

                 from c:\users\proje\appdata\local\temp\arduino_build_334764\sketch\src\inc\marlinconfig.h:32,

                 from sketch\src\HAL\HAL_STM32F1\onboard_sd.cpp:15:

c:\users\proje\appdata\local\temp\arduino_build_334764\sketch\src\pins\stm32/pins_BTT_SKR_MINI_E3.h:25:4: error: #error "Oops! Select an STM32F1 board in 'Tools > Board.'"

   #error "Oops! Select an STM32F1 board in 'Tools > Board.'"

    ^~~~~

In file included from sketch\src\HAL\HAL_STM32F1\onboard_sd.cpp:20:0:

sketch\src\HAL\HAL_STM32F1\SPI.h:28:10: fatal error: libmaple/libmaple_types.h: No such file or directory

 #include <libmaple/libmaple_types.h>

          ^~~~~~~~~~~~~~~~~~~~~~~~~~~

compilation terminated.

exit status 1
Error compiling for board Sanguino.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

I don't know the answer but it would probably help your quest if your Title mentions what you need help with - then people who can help might read your Thread.

If you modify your Original Post you can change the Title. Perhaps to "Problem uploading code to Ender 3 Pro 3D printer"

Also, have you looked for advice on the RepRap Forum that specialises in 3D printing?

...R