Hi!
I found the problem in the sketch MPU9250_MS5637_BasicAHRS2_ESP8266.ino. In line 284:
uint32_t D1 = 0, D2 = 0;
An error occurs:
error: conflicting declaration 'uint32_t D1'
error: conflicting declaration 'uint32_t D2'
For correct operation, it is necessary to declare other names of the variables D1 and D2, for example, _D1 and _D2.
Thaks for your works!