Hi!   When using this with the latest Backpacks 3.11 version, it is not automatically taking resources when attempting to build.

I have 35 wood in regular inventory.  I have 10000 wood in backpack.

I am attempting to place a foundation which requires 50 wood.  It is not automatically grabbing the additional 15 wood required to place the foundation from my backpack.

"Cant afford to place."

Am I missing something?

I got it....eventhough I have the backpacks.retrieve permission, you still need to set the 'retrieve mode' manually in order for the items to be taken out automatically, if needed.  

Great work on these plugins!!!  Much needed updates and great options.  Will donate shortly.

I think the confusion here is coming from the way the Item Retriever documentation is currently written, which merely states "When the Backpacks plugin is installed, players will be able to build/craft/etc. using the items inside their backpacks." That was written in December, which was before I added permissions and toggles into Backpacks based on user feedback. I'll update the documentation to clarify this.