When you use /setblock ~ ~ ~ minecraft:restone or /fill <x1> <y1> <z1> <x> <y> <z> minecraft:redstone it says 'There is no such item with name minecraft:redstone' but if you use /give <nick> minecraft:redstone it gives an piece of redstone.
When you use /setblock ~ ~ ~ minecraft:restone or /fill <x1> <y1> <z1> <x> <y> <z> minecraft:redstone it says 'There is no such item with name minecraft:redstone' but if you use /give <nick> minecraft:redstone it gives an piece of redstone.
redstone is an item, not a block.
If you want to place it as a block, use redstone_wire instead.