~upd~ Download Wire.h Library For Arduino

Ensure the package is installed and up to date. If an button is visible, click it. Reinstall the IDE :

To prove it exists on your computer:

#include <Wire.h>

Wire.h is a standard, core library that comes pre-installed with the Arduino Integrated Development Environment (IDE). It is part of the standard Arduino API. When you install the Arduino software on your computer, Wire.h is automatically placed in the correct location. download wire.h library for arduino