Hey everyone,
first of all, I would like to point out that I am relatively new to Neos. A few days ago, I created a site package for one of my projects - again - without any problems. Unfortunately, something got twisted and I was facing the following error, which - as far as I know - occured after executing a cache:flush
An exception was thrown while Neos tried to render your page
Warning: Invalid argument supplied for foreach() in /var/www/vhosts/xxx.netcup.net/httpdocs/neos/Data/Temporary/Development/Cache/Code/Flow_Object_Classes/Neos_FluidAdaptor_Core_Parser_TemplateProcessor_NamespaceDetectionTemplateProcessor.php line 140
root<Neos.Fusion:Case>/ documentType<Neos.Fusion:Matcher>/ element<MY.Myproject:LandingPage>/ head<Neos.Fusion:Array>/ stylesheets<Neos.Fusion:Array>/ site<Neos.Fusion:Template>/`
My Root.fusion looks like this:
prototype(MY.Myproject:LandingPage) < prototype(Neos.Neos:Page) {
head {
//Meta
meta = Neos.Fusion:Template {
templatePath = 'resource://MY.Myproject/Private/Templates/Page/Landing.html'
sectionName = 'meta'
}
//Stylesheets
stylesheets.site = Neos.Fusion:Template {
templatePath = 'resource://MY.Myproject/Private/Templates/Page/Landing.html'
sectionName = 'stylesheets'
}
//Head JScripts
javascripts.site = Neos.Fusion:Template {
templatePath = 'resource://MY.Myproject/Private/Templates/Page/Landing.html'
sectionName = 'headScripts'
}
}
...
All sections are mentioned in the referenced Landing.html. I also tried the following commands to fix it:
./flow flow:cache:flush (--force)
./flow node:repair
./flow resource:clean
Hope anyone can help me with this 
Thanks,
Erik