[ 2374920 ] Error messages (45)

[HolQue]

JSONP:

{
    "$A:" : 1,
    "p01" : ${$A:}
}

Error:

'Invalid key name: ${$A:}. Key names have to start with a letter, digit or underscore.'

But expected:

'Invalid key name: "$A:". Key names have to start with a letter, digit or underscore.'