Seaside Walkback

MessageNotUnderstood: receiver of "root" is nil

Debug Proceed Full Stack

Possible Causes

• the receiver of the message is nil
• a class extension hasn't been loaded correctly
• you sent the wrong message

Stack Trace

1. thisContext

   UndefinedObject(Object)>>doesNotUnderstand: #root

   self

   nil

   aMessage

   root

   exception

   MessageNotUnderstood: receiver of "root" is nil

   resumeValue

   nil

2. thisContext

   PRContext class>>kernel:

   self

   PRContext

   aKernel

   nil

3. thisContext

   PRPierFrame>>initialRequest:

   self

   a PRPierFrame

   aRequest

   a WARequest GET /seaside/examples/examplebrowser

4. thisContext

   [] in WARenderLoopMain>>start:

   self

   a WARenderLoopMain

   aRequest

   a WARequest GET /seaside/examples/examplebrowser

   root

   a WAExampleBrowser

   each

   a PRPierFrame

5. thisContext

   PRPierFrame(WAPresenter)>>withNextPresentersDo:

   self

   a PRPierFrame

   aBlock

   [closure] in WARenderLoopMain>>start: