您正在搜索属性vendorName.因此，在您的情况下应该是:

You're searching for the property vendorName. So in your case it should be:

10 = USER
10 { 
    userFunc      = TYPO3\CMS\Extbase\Core\Bootstrap->run

    pluginName    = Sermons
    extensionName = VmfdsSermons
    vendorName    = TYPO3
    [...]

我还在ext_localconf.php中使用了供应商名称空间:

I also used the vendor namespace within ext_localconf.php:

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
    '<Vendor>.' . $_EXTKEY, 
    [...]

我通过使用调试器找到了答案.我从\TYPO3\CMS\Extbase\Mvc\Dispatcher::resolveController()开始，然后跳到TYPO3\CMS\Extbase\Mvc\Request::getControllerObjectName().有一个成员controllerVendorName，因此我在Extbase中搜索了\TYPO3\CMS\Extbase\Mvc\Request::setControllerVendorName()的二传手，正好是setControllerVendorName，并在\TYPO3\CMS\Extbase\Mvc\Web\RequestBuilder::build()中找到了一个匹配项，其中一个名为vendorName的成员，就在答案是\TYPO3\CMS\Extbase\Mvc\Web\RequestBuilder::loadDefaultValues()上面的方法！

I found the answer by using the debugger. I started at \TYPO3\CMS\Extbase\Mvc\Dispatcher::resolveController() and jumped into TYPO3\CMS\Extbase\Mvc\Request::getControllerObjectName(). There is a member controllerVendorName, so I searched in Extbase for the setter of \TYPO3\CMS\Extbase\Mvc\Request::setControllerVendorName(), precisely just for setControllerVendorName, and got a match in \TYPO3\CMS\Extbase\Mvc\Web\RequestBuilder::build(), where is a member called vendorName, and just in the method above \TYPO3\CMS\Extbase\Mvc\Web\RequestBuilder::loadDefaultValues(), is the answer!