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I have a sketch which I can upload without problem with the Arduino IDE. I installed the arduino-cli Version: 0.28.0 Commit: 06fb1909 Date: 2022-10-18T15:53:04Z. I want to compile and upload a code on an arduino uno and use the command line

arduino-cli compile --fqbn arduino:avr:uno mysketch.ino

but get the following error:

/path/to/mysketch.ino:44:10: fatal error: LiquidCrystal.h: No such file or directory
 #include <LiquidCrystal.h>
          ^~~~~~~~~~~~~~~~~
compilation terminated.

Used platform Version Path
arduino:avr   1.8.5   /Users/user/Library/Arduino15/packages/arduino/hardware/avr/1.8.5


Error during build: exit status 1

how could I proceed to debug?

Juraj
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ecjb
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  • /path/to/mysketch.ino looks like an invalid path – jsotola Nov 06 '22 at 17:45
  • @jsotola. Thank you for your comment. It is indeed not the real path. I edited it for the question. But it is the path where the .ino file is – ecjb Nov 06 '22 at 17:51
  • how to debug? ... if your OS is Windows ... download process monitor from Microsoft ... use it to figure out where the program is looking for the file ... https://learn.microsoft.com/en-us/sysinternals/downloads/procmon – jsotola Nov 06 '22 at 18:11

1 Answers1

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The LiquidCrystal library is bundles with Arduino IDE 1 so it is not installed in your sketchbook folder's libraries folder so CLI can't find it.

Install the library with Arduino CLI or simply copy it from Arduino IDE 1 installation folder into libraries folder of your sketchbook.

Juraj
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  • many thanks for your answer @Juraj. what would be the command to install it with the Arduino CLI? – ecjb Nov 06 '22 at 17:53
  • @ecjb you work with CLI and you don't know the commands? https://arduino.github.io/arduino-cli/latest/commands/arduino-cli_lib_install/ – Juraj Nov 06 '22 at 18:00
  • The command is: arduino-cli lib install LiquidCrystal for future visitors' convenience. – David Refoua Jun 05 '23 at 16:51