error in debug.traceTransaction

[minggo1981]

System information

Geth version: geth 2.2.5

OS & Version: Centos 7

Actual behaviour

debug.traceTransaction("0x8fa2d94942c557604b0aecfedc19faa3b86be6f490ffc020d054955d3f9ade6f",{tracer:"callTracer"})
{
error: "VM in read-only mode. Mutating opcode prohibited",
from: "0xcfda975d9e9562608b277d293eceb37b8aaf112b",
gas: "0x1411e",
gasUsed: "0x1411e",
input: "0x5d9ec2100000000000000000000000000000000000000000000000000000000000000001",
time: "6.61275ms",
to: "0xb05f72ef477853aebfd93cf76c118bdb887996a3",
type: "CALL",
value: "0x0"
}

[zzy96]

Hi @minggo1981

This error means you are trying to update a public contract's state from a private transaction. Please check your actual transaction.

[prd-fox]

Creating and updating the simplestorage contract, then tracing it gives the same output, when it should succeed.