Subject: Re: bug#69100: ecb 2.50 doesn't work with emacs 29.2

From: Po Lu <[email-masked]>
Date: Tue, 13 Feb 2024 20:42:10 +0800

"Vaysenberg, Igor" <[email-masked]> writes:

> Hi,
> when I run ecb-activate the following error occured:
> ECB 2.50 uses CEDET 2.0 (contains semantic 2.2, eieio 1.4, speedbar 1.0).
> helm-M-x-execute-command: Symbol’s function definition is void: eieio--defgeneric-init-formUnable to load color "headerColor"
>
> The previous emacs version 28.x doesn't have this issue.
> Please advise how to fix.

You must either recompile ECB, or place:

  (require 'eieio-compat)

in your initialization files.