INVARIANT_VIOLATION__SUBSCRIPTION_ITERATOR_MUST_NOT_POLL_BEFORE_RESOLVING_EXISTING_MESSAGE_PROMISE
Appears as Solana error #9900001; Decode this error by running `npx @solana/errors decode -- 9900001 '…'`
Invariant violation: WebSocket message iterator state is corrupt; iterated without first resolving existing message promise. It should be impossible to hit this error; please file an issue at https://sola.na/web3invariant
Internal consistency checks that should never fail in normal use.
npx @solana/errors decode -- 9900001 '<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__INVARIANT_VIOLATION__SUBSCRIPTION_ITERATOR_MUST_NOT_POLL_BEFORE_RESOLVING_EXISTING_MESSAGE_PROMISE) lets you branch on it.