@solana/kit · Off-chain messages

Solana error #5607018

OFFCHAIN_MESSAGE__CONTENT_DOES_NOT_MATCH_EXPECTED

Appears as Solana error #5607018; Decode this error by running `npx @solana/errors decode -- 5607018 '…'`

Message

The content of the offchain message does not match the content that was expected. Expected content with a byte-length of $expectedBytes; got content with a byte-length of $actualBytes. The signer may have signed different data than was requested; do not trust its signature.

Placeholders (expectedBytes, actualBytes) are filled from the error’s context. Paste the base64 argument below to see the real values.

What it means

Encoding and validating off-chain signed messages (application domain, format, length limits).

What to do

  • Follow the off-chain message spec: version, application domain (32 bytes), format and length limits per format.

Decode it locally instead

npx @solana/errors decode -- 5607018 '<base64 context>'

In development, import from @solana/kit as usual and the full message is thrown. In production the message is stripped to keep bundles small; the error object still carries error.context with the same values this page decodes, and isSolanaError(err, SOLANA_ERROR__OFFCHAIN_MESSAGE__CONTENT_DOES_NOT_MATCH_EXPECTED) lets you branch on it.

Decode another error

Try: