Why does the ZF2 autoloader build the path wrongly? - zend-framework2

Question

I have an application with some modules. One of them is CourseSearch. Now I want to add a further one, the SportsPartnerSearch. Since these two modules are very similar to each other, I simply "cloned" / copied the CourseSearch and replaced all "Course" with "SportsPartner" (in all variations: $course to $sportsPartner, course-...phtml to sports-partner-...phtml etc.), in order to edit the logic in the second step. Now I'm getting following errors:
Warning:
require_once(/path/to/project/module/SportsPartnerSearch//src/CourseSearch/View/Helper/CourseSearchForm.php):
failed to open stream: No such file or directory in
/path/to/project/vendor/zendframework/zendframework/library/Zend/Loader/ClassMapAutoloader.php
on line 140
Fatal error: require_once(): Failed opening required
'/path/to/project/module/SportsPartnerSearch//src/CourseSearch/View/Helper/CourseSearchForm.php'
(include_path='.:/usr/share/php:/usr/share/pear') in
/path/to/project/vendor/zendframework/zendframework/library/Zend/Loader/ClassMapAutoloader.php
on line 140
Why is the path to the file being built in such strange way: /path/to/project/module/SportsPartnerSearch//src/CourseSearch/View/Helper/CourseSearchForm.php? Where did I do a mistake?
Some additional information.
The class, that cannot be found because the wron path is CourseSearch\View\Helper\CourseSearchForm in the CourseSearch module. It can be found, when I deactivate the new module SportsPartnerSearch, that contains the class SportsPartnerSearch\View\Helper\SportsPartnerSearchForm.
The CourseSearchForm view helper is instanciated in the CourseSearchForm\Module
class Module {
public function getViewHelperConfig() {
return array(
'factories' => array(
'courseSearchForm' => function($serviceManager) {
$helper = new View\Helper\CourseSearchForm(array('render' => true, 'redirect' => false));
// ERROR. This code is not executed anymore.
$helper->setViewTemplate('course-search/course-search/course-search-form');
$courseSearchForm = $serviceManager->getServiceLocator()->get('CourseSearch\Form\CourseSearchForm');
$helper->setCourseSearchForm($courseSearchForm);
return $helper;
}
)
);
}
}
And called in the layout file:
echo $this->courseSearchForm();
The SportsPartnerSearch\View\Helper\SportsPartnerSearchForm is instanciated in the same way in the SportsPartnerSearch\Module#getViewHelperConfig() and is not called yet.

Answer 1

Have you generated a classmap? Check the autoload_classmap.php file in both the CourseSearch and the SportsPartnerSearch modules. I guess you still have an old classmap lying around. I think the problem is hidden inside the classmap because of the error in the ClassMapAutoloader from Zend, and not the standard autoloader.
You can generate a new classmap with the classmap generator provided in ZF2 (assuming you load it via Composer) with:
cd module/SportsPartnerSearch
../../vendor/bin/classmap_generator.php
This will generate a new classmap file inside the SportsPartnerSearch module.