I make a map and I have the command / testforblock 390 51 -336 minecraft: wall_sign 4 {text1: "[\" \ ", {\" text \ ": \" 1423 \ "}]"} entered a code with sign. But it shows: The block at 390, 51, -336 does not have the necessary NBT keys. And I do not know how to fix it? Version 1.12.2
Which version?
1.12.2
Version 1.12.2
/ testforblock 390 51 -336 minecraft: wall_sign 4 {"Text1": "{\" text \ ": \" 1234 \ "}"}
As soon as 1234 on the sign stands there: Block at 390, 51, -336 found.
You forgot the "".