Could you please help me, I don't know how to handle the error message

Arduino: 1.8.9 (Windows 10), Board: "Arduino/Genuino Uno"

In file included from C:\Users\Admin\OneDrive\Documents\Arduino\libraries\DHT_sensor_library\DHT_U.cpp:15:0:

C:\Users\Admin\OneDrive\Documents\Arduino\libraries\DHT_sensor_library\DHT_U.h:36:29: fatal error: Adafruit_Sensor.h: No such file or directory

compilation terminated.

exit status 1
Error compiling for board Arduino/Genuino Uno.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Welcome to the forum.

Are you using the Arduino IDE 2.1.0 ?
In the left bar is a icon for the Library Manager.
Search for "adafruit unified sensor" and install that library:
afbeelding

The compiler should say: "I can not find the Adafruit Unified Sensor library".

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I am currently using arduino 1.8.9 and which one should I download? There are multiple results when I put that on my search bar.

Never download random things from random websites.

The only one is the Arduino IDE from the arduino website: https://www.arduino.cc/en/software

By the way, version 1.8.9 has also a "Library Manager", you can use that as well.

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The best way to install a library is to use the IDE library manager mentioned by @Koepel.
Here are instructions: >> https://docs.arduino.cc/software/ide-v1/tutorials/installing-libraries

You should, always, install with library manager, if possible.

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