Why some library examples do not load in Arduino IDE 2.0?

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1

Hi,

Like the title says, why are some library examples do not load in Arduino IDE 2.0? E.g. the library "LiquidCrystal_I2C" examples do not load in Arduino 2.0. What is missing in the lib definition to fix this issue with older libraries?

Thank you

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Which Arduino board are you using ?

What happens when you try to load the example ?

3

It could be the file extension on the files that make up the libraries.
As an added bonus IDE 2 will only allow the .ino where as the version 1.x allowed the file extensions of the Processing language as well. These are .pde files.

So if you see a .pde file just rename it with a .ino extension.

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4

Just tested it with Arduino IDE 2.0.4 and LiquidCrystal_I2C 1.1.2 and it worked (which does not really help you, I know :wink: ).

  • Did you try to remove and re-install the library?
  • If yes but without success you may investigate further like this
    • Open the Preferences of the IDE
    • Look up the path to your sketchbook
    • Open this path in the file browser
    • Open the libraries folder
    • Check if you find the folder "LiquidCrystal_I2C"
      • If not -> The library may not be placed where the IDE expects it
      • If yes -> Open the folder and look for the folder "examples"
        • if there is one check whether there are further folders and the files inside are of type .ino

Good luck!
ec2021

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Thanks @Grumpy_Mike, good to know!!
ec2021

6

I'm having the same issue. This is very confusing. I'm trying to add a library but not working.
I'm attempting to use a Kuman 3.5 touch screen for the first time, but can't seem to load the libraries correctly. I'm using IDE 2.0.4. Can anybody help me?

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Welcome to the forum

Please provide more details

What exactly happens when you try to "load the libraries" ?

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Concerning my problem, it's not about loading the library, but about opening the examples. @Grumpy_Mike solution fixed it. Just rename the .pde in the library examples folder to .ino.

9

In order to make all relevant information available to any who are interested in this subject, I'll add that the Arduino IDE developers are tracking this bug here:

If you have a GitHub account, you can subscribe to that issue to get notifications of any new developments related to this subject.

It is not clear to me whether the @kasari62's issue is the same as the one tracked at the link I shared.

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