Diagnostic Output Formats

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Human-Readable (default)

error[E2002]: type mismatch: expected uint256, found address
  --> MyContract.sol:15:5
   |
15 |     uint256 x = msg.sender;
   |     ^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: use explicit cast: uint256(uint160(msg.sender))

JSON Lines (--json-errors, --json-warnings)

Each diagnostic is a single JSON object on one line of stderr:

{
  "component": "neo-devpack-solidity",
  "severity": "error",
  "type": "CompilerError",
  "code": "E2002",
  "message": "type mismatch: expected uint256, found address",
  "formattedMessage": "type mismatch: expected uint256, found address",
  "location": {
    "file": "MyContract.sol",
    "line": 15,
    "column": 5
  }
}