XIAO BLE SENSE cannot communicate with IMU sensor

Thanks for your response. I tried using “Seeed nRF52 mbed-enabled Boards 2.8.1” but get this error:

Error: 13 INTERNAL: Cannot install platform: installing platform Seeeduino:[email protected]: searching package root dir: no unique root dir in archive, found ‘/Users/a2530/Library/Arduino15/tmp/package-3768760097/.github’ and ‘/Users/a2530/Library/Arduino15/tmp/package-3768760097/bootloaders’