fluidcontent as container does not render - typo3

Question

I'm trying to setup a small Website based von TYPO3 6.2 with flux and fluid Templating Engine.
I use:
fluid: 6.2
flux: 7.2.1
fluidpages 3.2.3
fluidcontent 4.2.2
fluidcontent_core: 1.1.3
vhs: 2.3.3
builder: 0.18.0
I have used the builder for a provider extension and I have managed to make page templates and also content templates.
But when I try to use a content element as content container it will not be rendered.
I have read similar articles here and also the documentation but I can't find a solution.
The static TS of fluidcontent_core is included.
I have also copied the line
$GLOBALS['TYPO3_CONF_VARS']['FE']['contentRenderingTemplates'] = array('fluidcontentcore/Configuration/TypoScript/');
in AdditionalConfiguration.
Following is my minimal Conatinertemplate:
div xmlns="http://www.w3.org/1999/xhtml" lang="en"
xmlns:f="http://typo3.org/ns/TYPO3/Fluid/ViewHelpers"
xmlns:v="http://typo3.org/ns/FluidTYPO3/Vhs/ViewHelpers"
xmlns:flux="http://typo3.org/ns/FluidTYPO3/Flux/ViewHelpers">
<f:layout name="Content" />
<f:section name="Configuration">
<flux:form id="btContainer" label="UpContainer" options="{group: 'stth'}">
</flux:form>
<flux:grid>
<flux:grid.row>
<flux:grid.column name="Col2" label="Inhalte" />
</flux:grid.row>
</flux:grid>
</f:section>
<f:section name="Preview">
<!-- If you wish, place custom backend preview content here -->
</f:section>
<f:section name="Main">
<div class="container addedClass">
<f:comment><flux:content.render area="Col2" /></f:comment>
<v:content.render column="Col2" />
</div>
</f:section>
I have tried to render content with v:content.render or flux:content.render but there is no output.
I get only an empty
<div class="container addedclass"> </div>
In the Backend I see the Container, labeled "Inhalte" and I can add Content. (Content is Standard CE like Text or header)
Can someone please give me a hint, what I can do next.
Thank you in advance
st
Update 1.7.2015
I have set up a new TYPO3 6.2 und used the preconfigured 'site kickstarter'.
As I added the AdditionalConfiguration.php I saw there where 2 lines to copy:
// fluidcontent_core
$GLOBALS['TYPO3_CONF_VARS']['FE']['contentRenderingTemplates'] = array('fluidcontentcore/Configuration/TypoScript/');
$GLOBALS['TYPO3_CONF_VARS']['FE']['activateContentAdapter'] = 0;
The second one is new to me.
Then I copied my Container-template in the my Provider extension: and YES - it works.
I tried to use the second line of AdditionalConfiguration in my original TYPO3 instance -- but there it does not work. So I am not shure if this was the solution. Perhaps someone has more insight?
Again: Thank you for your help.

Answer 1

I have seen some mistake in your code:
Your <flux:grid> code is outside of <flux:form> It should be inside. Please check entire code below:
<div xmlns="http://www.w3.org/1999/xhtml"
xmlns:flux="http://fedext.net/ns/flux/ViewHelpers"
xmlns:v="http://fedext.net/ns/vhs/ViewHelpers"
xmlns:f="http://typo3.org/ns/fluid/ViewHelpers">
<f:layout name="Content" />
<f:section name="Configuration">
<flux:form id="btContainer" label="UpContainer" options="{group: 'Custom elements'}">
<flux:grid>
<flux:grid.row>
<flux:grid.column name="Col2" style="width: 100%" label="Inhalte" ></flux:grid.column>
</flux:grid.row>
</flux:grid>
</flux:form>
</f:section>
<f:section name="Preview">
<flux:widget.grid />
</f:section>
<f:section name="Main">
<div class="container addedClass">
<flux:content.render render="1" area="Col2" />
</div>
</f:section>
</div>