It seems a cleanup procedure is still broken.

Remove the CompiledMethodTrailer class>>new by hand,
then you should be able to compile new methods in system.

2009/12/22 Randal L. Schwartz <merlyn at stonehenge.com>:
>
> MessageNotUnderstood: CompiledMethodTrailer class>>trailerClass
> 22 December 2009 8:09:25.698 am
>
> VM: Mac OS - a SmalltalkImage
> Image: Squeak3.10.2 [latest update: #8507]
>
> SecurityManager state:
> Restricted: false
> FileAccess: true
> SocketAccess: true
> Working Dir /Users/merlyn/Smalltalk/Squeak3.0/Squeak3.10.2-Trunk-090912
> Trusted Dir /foobar/tooBar/forSqueak/bogus
> Untrusted Dir /Users/merlyn/Library/Preferences/Squeak/Internet/My Squeak
>
> CompiledMethodTrailer class(Object)>>doesNotUnderstand: #trailerClass
>                      Receiver: CompiledMethodTrailer
>                      Arguments and temporary variables:
> <<error during printing>
>        Receiver's instance variables:
>                   superclass:         Object
>                                       methodDict:      a MethodDictionary(#clear->(CompiledMethodTrailer>>#clear "a Compil...etc...
>                                                        format:                                                   140
>                                                                                                                  instanceVariables:  #('data' 'encodedData' 'kind' 'size' 'method')
>                                                                                                                                      organization:          ('initialize-release' clear initialize method:)
> ('creating a meth...etc...
>             subclasses:        nil
>                                name:   #CompiledMethodTrailer
>                                        classPool:      a Dictionary()
>                                                        sharedPools:    nil
>                                                                        environment:    Smalltalk "a SystemDictionary with lots of globals"
>                                                                                        category:    #'Kernel-Methods'
>                                                                                                     traitComposition:  nil
>                                                                                                                        localSelectors:  nil
>
> CompiledMethodTrailer class>>new
>                      Receiver: CompiledMethodTrailer
>                      Arguments and temporary variables:
> <<error during printing>
>        Receiver's instance variables:
>                   superclass:         Object
>                                       methodDict:      a MethodDictionary(#clear->(CompiledMethodTrailer>>#clear "a Compil...etc...
>                                                        format:                                                   140
>                                                                                                                  instanceVariables:  #('data' 'encodedData' 'kind' 'size' 'method')
>                                                                                                                                      organization:          ('initialize-release' clear initialize method:)
> ('creating a meth...etc...
>             subclasses:        nil
>                                name:   #CompiledMethodTrailer
>                                        classPool:      a Dictionary()
>                                                        sharedPools:    nil
>                                                                        environment:    Smalltalk "a SystemDictionary with lots of globals"
>                                                                                        category:    #'Kernel-Methods'
>                                                                                                     traitComposition:  nil
>                                                                                                                        localSelectors:  nil
>
> CompiledMethod>>trailer
>        Receiver: (CompiledMethodTrailer class>>#trailerClass "a CompiledMethod(3360)")
>        Arguments and temporary variables:
> <<error during printing>
>        Receiver's instance variables:
> (CompiledMethodTrailer class>>#trailerClass "a CompiledMethod(3360)")
> CompiledMethod>>sourcePointer
>        Receiver: (CompiledMethodTrailer class>>#trailerClass "a CompiledMethod(3360)")
>        Arguments and temporary variables:
> <<error during printing>
>        Receiver's instance variables:
> (CompiledMethodTrailer class>>#trailerClass "a CompiledMethod(3360)")
>
>
> --
> Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
> <merlyn at stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>
> Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc.
> See http://methodsandmessages.vox.com/ for Smalltalk and Seaside discussion
>
>



-- 
Best regards,
Igor Stasenko AKA sig.