You're using the Bootstrap 4 library and methods. I don't know about the one referenced in the MOOC, but there are several differences between Torsten's Bootstrap 3 (TBS prefixed classes) and Bootstrap 4 (SBS prefix), in particular because Bootstrap 4 library wrapper uses a subclass of WAHtmlCanvas where all the methods are implemented.
See if your component implements #rendererClass it should return SBSHtmlCanvas as its renderer class instead of the default, inherited, WAHtmlCanvas. Regards, Esteban A. Maringolo On Sun, Jul 28, 2019 at 10:02 PM ian <i...@icjohnson.com> wrote: > > Hi All, > > Hopefully this is an easy one? > > I have been going through the MOOC exercises and have come across something I > can't seem to figure out. > > In the example the code reads: > > ---- > renderExampleOn: html > > | bar id| > id := 'navbarSupportedContent'. > bar := html navigationBar. > bar beLight; expandLarge. > bar background beLight. > bar with: [ > html navigationBarBrand: 'Navbar'. ] > > ---- > > Mine reads exactly the same but errors in the browser with: > > ---- > > Seaside Walkback > MessageNotUnderstood: WAHtmlCanvas>>navigationBar > > Debug Proceed Full Stack > Possible Causes > > you sent a message this type of object doesn't understand > > Stack Trace > > thisContext > WAHtmlCanvas(Object)>>doesNotUnderstand: #navigationBar > self > a WAHtmlCanvas > > thisContext > VIHeaderComponent>>renderContentOn: > self > a VIHeaderComponent > > thisContext > WARenderVisitor>>visitPainter: > self > a WARenderVisitor > > thisContext > WARenderVisitor(WAPainterVisitor)>>visitPresenter: > self > a WARenderVisitor > > thisContext > WARenderVisitor(WAPainterVisitor)>>visitComponent: > self > a WARenderVisitor > > ---- > > When using Finder to locate the selector, navigationBar, I notice that it is > a selector of SBSHtmlCanvas. > > So my question is: How to I set up my rendering class in seaside properly? > Currently, as per all I can find I am properly using WAComponent as > application super class. > > I don't see anything in the seaside book regarding bootstrap and I am > fallowing the MOOC section on bootstrap almost to a tee. Accepting the fact > that the library is now SBSDeploymentLibrary rather than TBSDeploymentLibrary. > > Any help would be greatly appreciated. > > Kindly, > > Ian >
