Having issues with Adafruit TSL2561 Light Sensor

I go a light sensor from Adafruit (few years back) and want to build a light sensor for a small 'science' project. The hardware I have is:

Arduino Uno + ADafruit TSL2561 + LCD Screen (2 rows)

I followed the instruction given on the Adafruit site, but I get an error when I try to add the TSL library. At some stage, the instructions tell to run the built-in example file (that came with the library), but that file is nowhere to be found.

Also, I want to include BOTH the sensor and have the LUX value displayed on the LCD screen. Most of the tutorials I've seen use the LCD shield instead.

Any help would be greatly appreciated.

It can be gotten from Git Hub. GitHub - adafruit/TSL2561-Arduino-Library: Arduino library for using the TSL2561 Luminosity sensor

Use the library manager and the examples will appear in the menu of the IDE.

Thank you all ... I found that the library folders were actually empty. It turns out this was due to my anti-virus.