user42427: I am using an Arduino Genuino, this is what comes up
Multiple libraries were found for "LiquidCrystal.h"
 Used: /home/user/Arduino/libraries/LiquidCrystal
 Not used: /opt/ArduinoIDE/libraries/LiquidCrystal
In file included from /home/user/Arduino/libraries/dht/DHT_U.cpp:22:0:
/home/user/Arduino/libraries/dht/DHT_U.h:25:29: fatal error: Adafruit_Sensor.h: No such file or directory
 #include <Adafruit_Sensor.h>

                             ^
compilation terminated.
exit status 1


user27653: The first notice about multiple libraries is not stopping you. The DHU library relies on the Adafruit Unified Sensor Library
You should have the following libraries (installed and) included:
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <DHT_U.h>


42427: <p>I am using an Arduino Genuino, this is what comes up</p>

<pre><code>Multiple libraries were found for "LiquidCrystal.h"
 Used: /home/user/Arduino/libraries/LiquidCrystal
 Not used: /opt/ArduinoIDE/libraries/LiquidCrystal
In file included from /home/user/Arduino/libraries/dht/DHT_U.cpp:22:0:
/home/user/Arduino/libraries/dht/DHT_U.h:25:29: fatal error: Adafruit_Sensor.h: No such file or directory
 #include &lt;Adafruit_Sensor.h&gt;

                             ^
compilation terminated.
exit status 1
</code></pre>
 27653: <p>The first notice about multiple libraries is not stopping you. The DHU library relies on the <a href="https://github.com/adafruit/Adafruit_DHT_Unified" rel="nofollow noreferrer">Adafruit Unified Sensor Library</a></p>

<p>You should have the following libraries (installed and) included:</p>

<pre><code>#include &lt;Adafruit_Sensor.h&gt;
#include &lt;DHT.h&gt;
#include &lt;DHT_U.h&gt;
</code></pre>
