Hi all. I updated from KiCad 8 to KiCad 9 . I have added the symbol libraries (preferences / manage symbol libraries) but there is a list of warnings. All components are there.
I just learned i must not update while working with a current project.
How to solve this error ? I tried to manually update 1 component, say R12 to see what happened but all i got is R12 present on the pcb and another R12 to be placed on the pcb ? Two components named R12.
Is this a bug ?
No errors when choosing (update pcb from schematic).
They are libraries mentioned in your configuration, either in the global footprint library table or the project library table, but aren’t found in the file system.
I kind of guessed that. And added the symbol libraries by hand before i got the warnings. In the menu ((preferences / manage symbol libraries)
I also added in(preferences / manage design block libraries) the path for the library footprint from the L86. This worked with 8. It does not seem to work with 9.
I also checked by making a new schematic. There are now no warnings for the same custom symbols libraries i made.
Accept that the footprint library for the L86 , ithat i made myself cannot be found . Even though i added the library manually through (preferences / manage design block libraries). Before i started with a new schematic.
What am i doing wrong ?
I even thought i went to deep with the path so i used (preferences/config paths) to check and use as an example to learn from and modified the path. And that does not work either. See image.
I think i will reinstall and revert to using 8 in the mean time. I made backups, so i can still continue , even with a little set back.
I installed 8.0.9.
And i noticed a difference in the preferences menu :
In 9 it is called manage design blocks and in 8 it is called manage footprints libraries
with the schematic window.
There is the problem and the difference see image :
I noticed in the main window, there is in the preferences menu a manage footprint libraries option.
But not in preference menu in the schematic windows for kicad 9.
With kind regards ,
William
Yep, that was the problem. Missing option in the schematic window/preferences menu.
main window preferences menu :
When migrating a project from 8 to 9. Warnings arise while executing schematic erc checker in kicad9.
New project in kicad 9 zero warnings with same components.
I solved the problem. Yay me. 
This has been the case as far back as I remember, at least for Kicad 6, 7, 8 and now 9.
Preferences in the Project window gives access to Symbol and Footprint Libraries.
Preferences in the Schematic window gives access only to Symbol Libraries.
Preferences in the PCB window gives access only to Footprint Libraries.
Manage Design Block Libraries is a new feature to Kicad, only available in Kicad 9. This new Library type is for schematic designs; so, it is available in Project and Schematic Preferences.
I see. That is good to know.
Thank you for the reassurance
William
