diff --git a/apis/chestAdapter.lua b/apis/chestAdapter.lua
index 02c2625..6953b73 100644
--- a/apis/chestAdapter.lua
+++ b/apis/chestAdapter.lua
@@ -124,12 +124,13 @@ end
 function ChestAdapter:provide(item, qty, slot, direction)
   pcall(function()
     for key,stack in Util.rpairs(self.getAllStacks(false)) do
-      if stack.id == item.name and
-         stack.dmg == item.damage and
-         stack.nbt_hash == item.nbtHash then
-
+      if stack.name == item.name and
+        (not item.damage or stack.damage == item.damage) and
+        (not item.nbtHash or stack.nbtHash == item.nbtHash) then
         local amount = math.min(qty, stack.qty)
-        self.pushItemIntoSlot(direction or self.direction, key, amount, slot)
+        if amount > 0 then
+          self.pushItemIntoSlot(direction or self.direction, key, amount, slot)
+        end
         qty = qty - amount
         if qty <= 0 then
           break
diff --git a/apps/chestManager.lua b/apps/chestManager.lua
index 52060b9..7a55c90 100644
--- a/apps/chestManager.lua
+++ b/apps/chestManager.lua
@@ -913,7 +913,7 @@ function listingPage:eventHandler(event)
     if canLearn then
       UI:setPage('learn')
     else
-      self.notification:error('Missing a crafting chest\nCheck configuration')
+      self.notification:error('Missing a crafting chest or workbench\nCheck configuration')
     end
 
   elseif event.type == 'craft' or event.type == 'grid_select_right' then
diff --git a/apps/persist.lua b/apps/persist.lua
index 3df928c..2c85f0e 100644
--- a/apps/persist.lua
+++ b/apps/persist.lua
@@ -12,7 +12,7 @@ local fileName = args[1] and
                  shell.resolve(args[1]) or
                  error('Syntax: persist <file name>')
 
-local c = Util.readFile() or error('Unable to read file')
+local c = Util.readFile(fileName) or error('Unable to read file')
 
 -- ensure it is writable - if not an error is thrown
 Util.writeFile(fileName, '')