removing a library(solved it)

I installed a library which is stopping a sketch from working and need to remove it and install the correct one. When I look in the sketch library it is shown as a contributed one but when I go to the arduino program and look in libraries it shows the default libraries but not the contributed one so is there anyway to find it so I can delete it? cheers Laurie

hello i'm having the same problem did you fix it by chance?

The easiest way to find a library is to do this:

  1. Open the Arduino IDE's File > Examples menu.
  2. Click the name of the library you want to find.
  3. Click on any of the library's examples.
  4. Select Sketch > Show Sketch Folder from the Arduino IDE's menus.

This will open the example sketch folder which is in the examples subfolder of the library. So you just need to navigate up a couple of folder levels and delete the library. Please be careful when deleting files. When in doubt back up!

Another option, which can be used if the library doesn't have examples, is to do this:

  1. Select File > Preferences from the Arduino IDE's menus.
  2. Check the box next to "Show verbose output during: [] compilation"
  3. Click the OK button.
  4. Open or create a sketch that includes the library.
  5. Select Sketch > Compile/Verify from the Arduino IDE's menus.
  6. Wait for the compilation to complete or fail.
  7. Read through the text in the black console window at the bottom of the Arduino IDE window. You may need to scroll up to see the full contents. You will find the path to the library listed.

I suspect the problem laurieh had was that there are multiple places where Arduino libraries are stored. There is the libraries folder under the Arduino IDE installation folder. This folder is to be used for the libraries that come with the Arduino IDE and you should never install any libraries to that folder but some people do and you may find some tutorials that give the bad advice to do so.

The place where the user is supposed to install libraries is the libraries subfolder of the sketchbook folder. The sketchbook folder location can be found in the Arduino IDE at File > Preferences > Sketchbook location:. That folder is also where libraries installed via Sketch > Include Library > Manage Libraries... or Sketch > Include library > Add .ZIP library... can be found.

Each hardware package also has a libraries folder. These libraries are only accessible by the Arduino IDE when one of the boards from that package is selected from the Tools > Board menu.


it works... I choose easy way

I had the same problem with a lot of libraries so I decided to start over by doing the following

Delete the Documents -> Arduino -> Libraries to remove all your libraries.
Delete the User -> AppData -> Local -> Arduino15 folder to remove all the preferences.
Uninstall Arduino IDE.
Install a fresh one.