For Vanilla 2.1

DmcBoos

How to setup this pluging for vanilla 2.1?

Bleistivt

You can't because it requires Vanilla 2.2

But you can download an old version from github, which should work with 2.1 (users won't be notified though, that requires 2.2)
https://github.com/bleistivt/registrationmessage/archive/9015eed83083a20b15501a8f713640d456042f5b.zip

DmcBoos

thanks for your feedback.. but "The addon could not be enabled because it generated a fatal error:"

hgtonight

Just a note @Bleistivt, the short array syntax is PHP 5.4+ while Vanilla 2.2 only requires PHP 5.3+.

Bleistivt

@hgtonight Chaining on newly created objects too, unfortunately.

But 5.3 got EOL'd 10 months ago, so I just added a note.

@DmcBoos You may wanna try this plugin, which was written for 2.0 or wait until 2.2 is out of beta.