在 TYPO3 8 LTS getPageRenderer() 方法已弃用.现在，您可以使用如下所示的 PageRender 方法.

In TYPO3 8 LTS getPageRenderer() Methods Deprecated. Now, You can use PageRender Methods like below.

$pageRender = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Core\Page\PageRenderer::class);
$pageRender->addJsFooterFile($jsFile, 'text/javascript', true, false, '', true);