IoT RedBoard boot error

I have a RedBoard ESP32 connected to the SparkFun Odometer sensor via a Quwiik connector. So very simple hardware. My sketch is based on the examples and it uploads and runs perfectly well. The problem is that every boot produces following before my code starts:

ets Jul 29 2019 12:21:46
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:4832
load:0x40078000,len:16460
load:0x40080400,len:4
load:0x40080404,len:3504
entry 0x400805cc
E (153) esp_core�fVW }���͡� Core dump data check failed:
Calculated checksum=‘50e57e23’
Image checksum=‘ffffffff’ �Connected!

Which is annoying. I understand its some kind of boot error but have no idea how to fix it.

Are you hitting the reset button @ upload? Also ensure you have the correct board selected
image

Not sure where the 2019 is coming from but your ESP core might be a bit out of date

Double check baud settings and whatnot too

Thanks for your response. I have not been pressing the reset button at upload, do I need to? I do have the “SparkFun ESP32 IoT RedBoard” selected.

You can try pressing it (RST) before/after upload attempts to see if anything changes

Otherwise run through the other suggestions