fluidcontent "Template could not be loaded."

Question

I upgraded my TYPO3 version from 6.2 to 7.6.27. Accordingly, the extension fluidcontent to 5.2.0

Now I get the following error message in the frontend:

Template could not be loaded.

I tried /Content/Render.html, /Content/render.html

In the ext_localconf.php is the following in it:

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
        'FluidTYPO3.Fluidcontent',
        'Content',
        [
            'Content' => 'render',
        ],
        [],
        \TYPO3\CMS\Extbase\Utility\ExtensionUtility::PLUGIN_TYPE_CONTENT_ELEMENT
    );

I look now in the appropriate folder. Is not render.html or Render.html in it. If I create both consecutively, I still get the error message. Cache has been emptied.

Now I do not know any more advice. Does anyone know what to do?

Answer 1

Be sure to have the correct pathes configured, also have the correct spelling of your templates (leading uppercase)

Do you have configured pathor paths?
Do you use constants or setup?

What folder have you configured as base folder for templates?

Specify it in your question adding a screenshot showing the typoscript setup (TSOB).
this should be the documentation
and this the typoscript in question (copied from that page):

plugin.tx_myextensionkey.view {
    templateRootPath = EXT:myextensionkey/Resources/Private/Templates/
    partialRootPath = EXT:myextensionkey/Resources/Private/Partials/
    layoutRootPath = EXT:myextensionkey/Resources/Private/Layouts/
}

Answer 2

First of all I'd suggest moving on to at least TYPO3 8.7, since TYPO3 7.6 will only have security- and bugfixes until October 2018 where TYPO3 8.7 will have them until March 2020.

Second I am guessing, based on the given details in your question, that your files are not properly located. Did you make sure they are based on MVC? So the requested 'Render.html' should be found at:

typo3conf/ext/your_extension/Resources/Private/Templates/Content/Render.html

Edit: If it's not your own extension (thanks for the markup-edit), did you include the extension configuration into the template? This can be done via editing the template inside the TYPO3 backend, select "edit whole template" and selecting the configuration of 'fluidcontent' at the Includes-tab.