C:\Users\ASUS\AppData\Local\Temp.arduinoIDE-unsaved202579-32520-6o87bd.n4vbu\ChangePagesAndSendFloatValuesCode\ChangePagesAndSendFloatValuesCode.ino:48:10: fatal error: EasyNextionLibrary.h: No such file or directory 48 | #include "EasyNextionLibrary.h" // Include EasyNextionLibrary | ^~…

Please turn on verbose compilation, capture the output and put it in a reply in a code block (i.e. paste it, select it and use the <CODE/> tool to preserve formatting). There's a couple of usual suspects when this kind of things happen but we've got to see ALL the output to figure out if any of them…

How and where did you install the library?

[image] chrysyscazerdus: #include "EasyNextionLibrary.h" Try: #include <EasyNextionLibrary.h>

Which version of the IDE? If IDE 2.x please post a screenshot of your File → Preferences. You can directly paste it in a forum reply. Reason for asking is that you might have non-ascii characters in your sketchbook path as demonstrated in below image [image] If so, see advice in My laptop A Ard…

[image] chrysyscazerdus: unsaved202579-32520-6o87bd.n4vbu\ChangePagesAndSendFloatValuesCode\ChangePagesAndSendFloatValuesCode.ino: The path to your code starts from "unsaved". Its means that you try to edit an library example, that marked as "read-only". The result of this can be unpredictabl…

[image] LarryD: Try: #include <EasyNextionLibrary.h> Why? Quote marks mean search locally, then search elsewhere, said elsewhere being exactly where angle brackets start. Unless it's some weird Arduino thing they decided to do differently. a7

[image] alto777: Quote marks mean search locally, then search elsewhere I had not realized “ “ meant here then there. Thought “ “ was locally and < > was in the library. I learned something new every day; or maybe my mind is turning into a FIFO, in now out immediately …

ok as i read this topic that it is talking about computer A and B i think the problem in computer A is that the version of the arduino is very old so try installing a newer verion.

[image] Ivandro6000: it is talking about computer A and B Where do you see two different computers mentioned?

[image] sterretje: If so, see advice in My laptop A Arduino Ide can't find the library but Laptop B's Arduino Ide can - #10 by sterretje . “If so, see advice in My laptop A Arduino Ide can't find the library but Laptop B's Arduino Ide can - #10 by sterretje .“

Can't call a library even though it's already installed

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Ivandro6000 August 26, 2025, 6:31pm 13

“If so, see advice in My laptop A Arduino Ide can't find the library but Laptop B's Arduino Ide can - #10 by sterretje .“

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Can't call a library even though it's already installed

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