Hi, I followed this tutorial and have the same problem as described here but that's not the point here.
I'm wondering where the binary Converter.class is. I can't find it. I suppose it should be in WEB-INF/classes/wtp (as the source file is located in the wtp package) but It's not. I tried to deactivate the auto build and build it manually and no errors occured but the console left blank, is that normal? Shouldn't be there any compiling messages?
All the compiled .class files should go inside /WEB-INF/classes/ sub directory of the (distribution) directory as is specified in the build script. You may check the build script to check what the distribution directory is.