why it shows like

[praveerkr]

In file included from D:\hydros12 sensor latest updated code\sketch_sep28a\sketch_sep28a.ino:1:
c:\Users\admin\Documents\Arduino\libraries\SDI-12\src/SDI12.h:212:6: error: multiple definition of 'enum LookaheadMode'
212 | enum LookaheadMode {
| ^~~~~~~~~~~~~
In file included from C:\Users\admin\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.5\cores\esp32/Arduino.h:193,
from C:\Users\admin\AppData\Local\Temp\arduino\sketches\1E56657A220D883D2FDAE4DA53568610\sketch\sketch_sep28a.ino.cpp:1:
C:\Users\admin\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.5\cores\esp32/Stream.h:40:6: note: previous definition here
40 | enum LookaheadMode {
| ^~~~~~~~~~~~~

exit status 1

Compilation error: exit status