Unable to load block into composer. You must edit this content from within the context of the page.6 users found helpful
I added a Content block to the page defaults (with the 'Main' content area). Added a Content thingy in the 'Edit Form' spot. Do I need to link them somehow?
At the Page Types dashboard page, select 'Output' for the page type you are editing.
Select 'Edit Defaults' for the page template/s this page type can output to.
Put the page in edit mode and add a 'Composer Control' block (its right at the bottom).
It will ask you to select a Composer control, select your Content block.
Publish your changes!
You should see a message saying "The Content page type composer form element will output its contents here (Block ID xxx)"
I wish there was a complete & concise description of Composer in 5.7 - but as always with C5, the information is limited and scattered across different pages and sections... At least I cannot find any complete page in the official docs. Does anyone know any good source?
Update: A useful Howto is herehttps://www.concrete5.org/documentation/how-tos/editors/setup-a-simp... but I still wonder why official docs give only scarce hints on Composer usage...
In fact, I just pulled down a copy of 18.104.22.168 and did a fresh install with the sample content, and on this new instance I see the same issue if I go to the Composer of a Portfolio Project or Blog Entry.
It seems there was a disconnect between my page, and the Page Type (I had made modifications to the Page Type after creating a page). Once I deleted the page, and recreated it, all the blocks and composer fields showed correctly. It sucks that connection is frail, but at least I know what to look out for now.
Will have to go and recreate a whole bunch of pages... :-(