Arduino IDE and Wire.h?

I just got my first Arduino Uno, so there may be a simple solution to my dilemma:

I'm trying to use Arduino to read a SketchFun TMP102 temperature sensor. I downloaded

https://github.com/sparkfun/SparkFun_TMP102_Arduino_Library/archive/master.zip

and followed the instructions for adding a zip library, but when I try to compile the sketch I keep getting an error that there is no Wire.h file. The sketch says that Wire.h is included with the Arduino IDE, but when I do a find Wire.h, nothing shows up. In addition, when I use Board Manager to look at the INSTALLED Arduino AVR files, there is no Wire.h present.

I'm running Arduino 1.8.8 using a Raspberry Pi 3B+.

What am I missing?

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Arduino: 1.8.8 (Linux), Board: "Arduino/Genuino Uno"

/home/pi/Downloads/arduino-1.8.8/arduino-builder -dump-prefs -logger=machine -hardware /home/pi/Downloads/arduino-1.8.8/hardware -tools /home/pi/Downloads/arduino-1.8.8/tools-builder -tools /home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -built-in-libraries /home/pi/Downloads/arduino-1.8.8/libraries -libraries /home/pi/Arduino/libraries -fqbn=arduino:avr:uno -vid-pid=0X2341_0X0043 -ide-version=10808 -build-path /tmp/arduino_build_995293 -warnings=none -build-cache /tmp/arduino_cache_205974 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.arduinoOTA-1.2.1.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avrdude.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avrdude-6.3.0-arduino14.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avr-gcc.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avr-gcc-5.4.0-atmel3.6.1-arduino2.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -verbose /home/pi/Arduino/libraries/SparkFun_TMP102_Arduino_Library-master/examples/SparkFun_TMP102_Breakout_Example/SparkFun_TMP102_Breakout_Example.ino
/home/pi/Downloads/arduino-1.8.8/arduino-builder -compile -logger=machine -hardware /home/pi/Downloads/arduino-1.8.8/hardware -tools /home/pi/Downloads/arduino-1.8.8/tools-builder -tools /home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -built-in-libraries /home/pi/Downloads/arduino-1.8.8/libraries -libraries /home/pi/Arduino/libraries -fqbn=arduino:avr:uno -vid-pid=0X2341_0X0043 -ide-version=10808 -build-path /tmp/arduino_build_995293 -warnings=none -build-cache /tmp/arduino_cache_205974 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.arduinoOTA.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.arduinoOTA-1.2.1.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avrdude.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avrdude-6.3.0-arduino14.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avr-gcc.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -prefs=runtime.tools.avr-gcc-5.4.0-atmel3.6.1-arduino2.path=/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr -verbose /home/pi/Arduino/libraries/SparkFun_TMP102_Arduino_Library-master/examples/SparkFun_TMP102_Breakout_Example/SparkFun_TMP102_Breakout_Example.ino
Using board 'uno' from platform in folder: /home/pi/Downloads/arduino-1.8.8/hardware/arduino/avr
Using core 'arduino' from platform in folder: /home/pi/Downloads/arduino-1.8.8/hardware/arduino/avr
Detecting libraries used...
/home/pi/Downloads/arduino-1.8.8/hardware/tools/avr/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10808 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -I/home/pi/Downloads/arduino-1.8.8/hardware/arduino/avr/cores/arduino -I/home/pi/Downloads/arduino-1.8.8/hardware/arduino/avr/variants/standard /tmp/arduino_build_995293/sketch/SparkFun_TMP102_Breakout_Example.ino.cpp -o /dev/null
SparkFun_TMP102_Breakout_Example:26:75: error: Wire.h: No such file or directory
compilation terminated.
exit status 1
Wire.h: No such file or directory

Do you see the Wire library at /home/pi/Downloads/arduino-1.8.8/hardware/arduino/avr/libraries/Wire?

In that Wire folder I find:
2 folders: examples and src (neither folder contains Wire.h)
2 files: keywords.txt and library.properties

/home/pi/Downloads/arduino-1.8.8/hardware/arduino/avr/libraries/Wire/src should contain a file named Wire.h. If not, there must be something wrong with your installation of the Arduino IDE. I recommend downloading a fresh copy and installing that.