Library manager is empty in IDE 2.3.2 and not 1.8.19

Using Windows 11 home

Issue 1 Library manager is empty as shown below:
image

Issue 2: Automatic library updates produces several failures as shown below (as an example):

Failed to update Adafruit GFX Library. Error: 3 INVALID_ARGUMENT: The library Adafruit GFX Library has multiple installations: -
C:\Users\occam\Documents\Arduino\libraries\Adafruit-GFX-Library-master -
C:\Users\occam\Documents\Arduino\libraries\Adafruit_GFX_Library

Automatic library install can't be performed in this case, please manually remove all duplicates and retry.

Questions:

  1. How do I fix issue 1 ? Tried re-booting IDE, waiting , adding a library with no joy.

  2. What is the difference between these two libraries?
    .....\ Adafruit-GFX-Library-master - and
    .... \libraries\Adafruit_GFX_Library
    2a: How do I know which of the two libraries to delete?
    2b: Is there and easy way to "manually remove all duplicates and retry."
    2c: How do I avoid this situation in the future?

PS: Opened IDE 1.8.19 and library manager there showed all libraries and seemingly updated all libraries without error.

The *-master version is, as far as I know, a zip-file that you downloaded from the web. You manually extracted the zip and placed it in the libraries directory.

To get rid of the 'duplicates'

  1. Find the libraries directory.
    If you don't know where it is
    • In the IDE, check the sketchbook location in file/preferences; the libraries directory is a subdirectory of the sketchbook directory.
  2. Using windows explorer, navigate to the libraries directory in the sketchbook directory.
  3. Find the library directory that you want to / need to delete and delete it.

If you install libraries by installing using library manager or by using "add .zip library" in the IDE you should not encounter the issue (see first comment). Hence the library to delete will be the *-master.

Thank you, deleting masters worked.

Also re item 1, the list reappeared on a cold boot.

Dragons...why does it always have to be dragons?