Multiple libraries were found... No such file or directory

Development Tools IDE 1.x
1

Hello folks! I'm a first-time arduino user trying to get going on my first project.
It's not going great so far.
I'm trying to control the Waveshare 1.54inch e-Paper Module using an Arduino Nano Every. Following the pin map and code from the manufacturer didn't work, so I've been trying to run an example code from the GxEPD2 project on github (link here). The filename is GxEPD2_Example.ino.

Arduino's IDE is giving me mixed messages when I try to upload the example sketch, saying both "Multiple libraries were found" and "No such file or directory."
Here's the output:

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Ben\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Ben\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries D:\1.  Libraries\Documents\Arduino\libraries -fqbn=arduino:megaavr:nona4809:mode=off -vid-pid=2341_0058 -ide-version=10813 -build-path C:\Users\Ben\AppData\Local\Temp\arduino_build_397079 -warnings=none -build-cache C:\Users\Ben\AppData\Local\Temp\arduino_cache_968907 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avr-gcc.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino5 -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino5.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino5 -prefs=runtime.tools.avrdude.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17 -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17 -prefs=runtime.tools.arduinoOTA.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.3.0 -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.3.0 -verbose D:\1.  Libraries\Documents\Arduino\GxEPD2-master\GxEPD2-master\examples\GxEPD2_Example\GxEPD2_Example.ino
C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Ben\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Ben\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries D:\1.  Libraries\Documents\Arduino\libraries -fqbn=arduino:megaavr:nona4809:mode=off -vid-pid=2341_0058 -ide-version=10813 -build-path C:\Users\Ben\AppData\Local\Temp\arduino_build_397079 -warnings=none -build-cache C:\Users\Ben\AppData\Local\Temp\arduino_cache_968907 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avr-gcc.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino5 -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino5.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino5 -prefs=runtime.tools.avrdude.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17 -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17 -prefs=runtime.tools.arduinoOTA.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.3.0 -prefs=runtime.tools.arduinoOTA-1.3.0.path=C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\tools\arduinoOTA\1.3.0 -verbose D:\1.  Libraries\Documents\Arduino\GxEPD2-master\GxEPD2-master\examples\GxEPD2_Example\GxEPD2_Example.ino
Using board 'nona4809' from platform in folder: C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\hardware\megaavr\1.8.6
Using core 'arduino' from platform in folder: C:\Users\Ben\AppData\Local\Arduino15\packages\arduino\hardware\megaavr\1.8.6
Detecting libraries used...
"C:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino5/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=atmega4809 -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_NANO_EVERY -DARDUINO_ARCH_MEGAAVR -DMILLIS_USE_TIMERB3 -DNO_EXTERNAL_I2C_PULLUP "-IC:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.6\\cores\\arduino/api/deprecated" "-IC:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.6\\cores\\arduino" "-IC:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.6\\variants\\nona4809" "C:\\Users\\Ben\\AppData\\Local\\Temp\\arduino_build_397079\\sketch\\GxEPD2_Example.ino.cpp" -o nul -DARDUINO_LIB_DISCOVERY_PHASE
Alternatives for GxEPD2.h: [GxEPD2@1.2.13 GxEPD2-master@1.2.13]
ResolveLibrary(GxEPD2.h)
  -> candidates: [GxEPD2@1.2.13 GxEPD2-master@1.2.13]
"C:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino5/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=atmega4809 -DF_CPU=16000000L -DARDUINO=10813 -DARDUINO_AVR_NANO_EVERY -DARDUINO_ARCH_MEGAAVR -DMILLIS_USE_TIMERB3 -DNO_EXTERNAL_I2C_PULLUP "-IC:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.6\\cores\\arduino/api/deprecated" "-IC:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.6\\cores\\arduino" "-IC:\\Users\\Ben\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\megaavr\\1.8.6\\variants\\nona4809" "-ID:\\1. Libraries\\Documents\\Arduino\\libraries\\GxEPD2\\src" "C:\\Users\\Ben\\AppData\\Local\\Temp\\arduino_build_397079\\sketch\\GxEPD2_Example.ino.cpp" -o nul -DARDUINO_LIB_DISCOVERY_PHASE
Alternatives for GxEPD2.h: [GxEPD2@1.2.13 GxEPD2-master@1.2.13]
ResolveLibrary(GxEPD2.h)GxEPD2_Example:1:10: fatal error: GxEPD2.h: No such file or directory

  -> candidates: [GxEPD2@1.2.13 GxEPD2-master@1.2.13] #include <GxEPD2.h>

          ^~~~~~~~~~
Multiple libraries were found for "GxEPD2.h"
compilation terminated.
 Used: D:\1.  Libraries\Documents\Arduino\libraries\GxEPD2
 Not used: D:\1.  Libraries\Documents\Arduino\libraries\GxEPD2-master
Using library GxEPD2 at version 1.2.13 in folder: D:\1.  Libraries\Documents\Arduino\libraries\GxEPD2 
exit status 1
GxEPD2.h: No such file or directory

From googling these errors, I understand that the "No such file or directory" means that Arduino can't find a file, so I've tried the following to help Arduino find it:

  • downloaded the GxEPD2 library
  • added the ZIP file, downloaded from GxEPD2's github page, as a ZIP library
  • gone to sketch/show sketch folder (which brought me to my documents library) and put GxEPD2.h and other #included files in that directory
  • Put GxEPD2.h and other #included files directly in D:\1. Libraries\Documents\Arduino\libraries\GxEPD2\
  • GxEPD2.h and other #included files in the same folder as the sketch I'm trying to upload
  • Restarting Arduino IDE after performing these steps
  • Restarting computer after performing these steps

So far, none of these have fixed the issue. I suspect there's some silly mistake I've made somewhere, but I haven't been able find it. Any help would be much appreciated.

Edit: After posting I recalled that it's encouraged to include the code we're trying to debug: GxEPD2_Example.ino is nearly 1800 lines long, so I suspect that that's not ideal, here.