Hi, I got it a 3.9 and installed pier from squeakmap. Then, from monticello, I installed Pier plugin. I created a new bog, and when I try to open it, I get the next error: MessageNotUnderstood: WARenderedHtmlRoot>>rss * WARenderedHtmlRoot(Object)>>doesNotUnderstand: #rss self a WARenderedHtmlRoot *temps* aMessage rss *inst vars* docType ' title 'Pier: Giuseppe' htmlAttrs a WAHtmlAttributes headAttrs a WAHtmlAttributes bodyAttrs a WAHtmlAttributes headElements an OrderedCollection(a WAMetaElement a WALinkElement a WALinkElement a WALinkElement a WAScriptEleme...etc... scripts an OrderedCollection() styles an OrderedCollection('#toolbar { position: fixed; bottom: 0; left: 0; right: 0; margin-top: 40px; pa...etc... resourceBaseUrl nil context a WARenderingContext * PBBlogHtmlView(PBHtmlView)>>updateRoot: self a PBBlogHtmlView *temps* aHtmlRoot a WARenderedHtmlRoot *inst vars* decoration a WAStateHolder(a WAAnswerHandler) context a PRContext stucture: 'Giuseppe' command: 'View' blog a PBBlog name: 'Giuseppe' posts #() batcher a WABatchedList tag nil * [] in WARender>>buildDocRoot {[:each | each updateRoot: docRoot]} self a WARender *temps* docRoot a WARenderedHtmlRoot each a PBBlogHtmlView *inst vars* root a WAToolFrame context a WARenderingContext request nil url a WAUrl * PBBlogHtmlView(WAPresenter)>>withNextPresentersDo: self a PBBlogHtmlView *temps* aBlock [] in WARender>>buildDocRoot {[:each | each updateRoot: docRoot]} ea nil *inst vars* decoration a WAStateHolder(a WAAnswerHandler) context a PRContext stucture: 'Giuseppe' command: 'View' blog a PBBlog name: 'Giuseppe' posts #() batcher a WABatchedList tag nil * [] in WAAnswerHandler(WAPresenter)>>withNextPresentersDo: {[:ea | ea withNextPresentersDo: aBlock]} self a WAAnswerHandler *temps* aBlock [] in WARender>>buildDocRoot {[:each | each updateRoot: docRoot]} ea a PBBlogHtmlView *inst vars* next a WAStateHolder(a PBBlogHtmlView) block [] in PRContentsWidget>>buildComponent: {[:value | self onAnswerCommand: value]} Thanks in advance. -- Giuseppe Luigi Punzi :: ZYO :: Solutions everywhere email: glpunzi(a)zyoconsulting.com tlfno: +34 675 145 912 web: http://www.zyoconsulting.com