Warning: reference prefix

why?

I have the “?” on all my symbols, they get replaced by 1, 2 ,3 and so on once I annotate them.

Or are I missing something?

Application: KiCad Symbol Editor x64 on x64

Version: 8.0.1-118-g9a728c37df, release build

Libraries:
	wxWidgets 3.2.4
	FreeType 2.12.1
	HarfBuzz 8.3.0
	FontConfig 2.14.2
	libcurl/8.5.0-DEV Schannel zlib/1.3

Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW

Build Info:
	Date: Apr  2 2024 05:22:33
	wxWidgets: 3.2.4 (wchar_t,wx containers)
	Boost: 1.83.0
	OCC: 7.7.1
	Curl: 8.5.0-DEV
	ngspice: 42
	Compiler: Visual C++ 1936 without C++ ABI

Build settings:

why?

because it’s stated in the documentation. (section “Schematic Editor | 8.0 | English | Documentation | KiCad”, search for “?”.

I have the “?” on all my symbols, they get replaced by 1, 2 ,3 and so on once I annotate them.

Maybe this functionality is not guaranteed. Or is error prone in the code. Or whatever.
I don’t know the reason behind this requirement, but normally it’s better to follow the official documentation.
At least for newly created symbols you could omit the “?” character.

When making a symbol for the library, only the alphabetic prefix is needed. So leave out the ?

When you place instances on the schematic, they might show a ? indicating that you haven’t annotated them yet.

thanks for your answers