I just got a reply from the maintainer. Apperently Bosch changed the driver in June 2017 and broke backwards compatibility. If anyone uses the library, commit cf40d00 from Bosch should work.

Hi, I've recently bought some ESP32 modules and a Bosch BME280 temperature/humidity/pressure sensor. I want to build a weather station. To start, I wanted to use this project: https://github.com/yanbe/bme280-esp-idf-i2c . However, it won't compile. I'm new to C, but it seems like the definitions in ...