why will my hopper not move items to the next hopper?

I have one hopper connected to the other, and the other to a chest. I know I have them connected correctly, because the second hopper deposits into the chest perfectly.
However, items do not transfer from the first to the second hopper. Why won't this work?
Best Answer
Is the first hopper targeting the second hopper? You might have placed the hopper so that the little pipe on bottom isn't pointing at the second hopper.
Is there redstone running near the hoppers? A hopper receiving a redstone signal doesn't do anything.
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How do you make an item go from one hopper to another?
Unplug the power cord of your DISH receiver (typically has a red tag) from the electrical outlet for 10 seconds, then plug it back in. If you have a Hopper & Joey system, unplug the power cord of the Hopper (the main, large receiver). The reset process may take up to 5 minutes to complete.Why does my hopper not work?
It is not possible to reroute items in hoppers the same way you can with rails without commands. However you can reroute items with a system like this (http://i.imgur.com/NCGNatn.png). Flipping the lever down sends the items into the chest; flipping it up sends the items into the furnace.How do you redirect a hopper?
Head to a crafting table and place a chest in the middle most square. Then place iron ingots to the left, right, and below the chest. Place the last two ingots in the top right corner and the top left corner to craft your hopper.Minecraft: Why your hopper doesn't work. Easy fix.
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Answer 2
Make sure that you have shift-right clicked the hopper onto the target hopper and nothing is powering it, as powering a hopper will stop it from outputting items.
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