The first question encountered is to define a page class that does not contain abstract methods (attributes) into abstraction (because it is from other code), resulting in page classes that cannot be created. (But never thought of this reason, subconsciously thought that all page classes were abstract) Search Google found a same problem, solved the second one is asset. There is no LOCATE. At first, mistakes are html and jwc to name the Asset's naming, or what happens to can't match. Search in this misunderstanding. Finally, guess whether it is a PATH that needs to be mapped to a actual existing file, and make it up. The problem is fixed. Search Google also searches for a same problem. But the other party did not solve ...
