BME688: BME68X error code : -3

Hello,

i use the BME 688 Adafruit Brakeoutboard with the Adafruit32 Feather Board with Arduino IDE. 

The sample code I use to read humidity, pressure, ... can read, works fine. 

But when I try to upload the bme68x_demo_sample from the BSEC2 libary, I always get the following output on the Serial Monitor: BME68X error code : -3

 

What does this mean and how can I fix it?

thx. 

 

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