Cant create channel ("not enough witness outputs...") about lightning-app HOT 5 CLOSED

This error message is displayed when you create a channel and the funds from the on-chain network has yet to be confirmed. The funding transaction here means an on-chain (bitcoin blockchain) transaction which can only be spent by mutual consent of the parties involved.

This is the code for reference:
Source: https://github.com/lightningnetwork/lnd/blob/master/lnwallet/wallet.go

// ErrInsufficientFunds is a type matching the error interface which is
// returned when coin selection for a new funding transaction fails to due
// having an insufficient amount of confirmed funds.
type ErrInsufficientFunds struct {
	amountAvailable btcutil.Amount
	amountSelected  btcutil.Amount
}

func (e *ErrInsufficientFunds) Error() string {
	return fmt.Sprintf("not enough witness outputs to create funding transaction,"+
		" need %v only have %v  available", e.amountAvailable,
		e.amountSelected)
}

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Thanks for that info. The app showed an incoming transaction that was "confirmed" though

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djpnewton Sorry for asking this, but I'm just curious - was it 2 confirmations? I had to wait for 2 confirmations.

Edit: Nvm, ignore this. I've just checked I think 1 confirmation at the moment is enough for the tx to show up. I wonder why the error shows up, unless there's some issue and the wallet is getting out of sync. Sorry about that, would also like to know why this issue might have occurred.

Edit 2: I've faced this issue twice yesterday as well. I've cleared off my data folder and started to re-sync from scratch to check if it resolves it.

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There is likely a bug in dealing with the bitcoin change. I successfully opened a channel but when trying to open other
$ lncli openchannel --node_key=03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134 --local_amt=500000 --push_amt=100000

[lncli] rpc error: code = Unknown desc = not enough witness outputs to create funding transaction, need 0.005 BTC only have 0 BTC available

However, there are funds:

$ lncli walletbalance
{
"balance": "8968004"
}

and these funds are confirmed in a change

lncli listchaintxns
{
"transactions": [
{
"tx_hash": "f575e7ddc1cfd8eed1474d9989ce97c7cc230d533d8aad5e98ead721d870f184",
"amount": "10000000",
"num_confirmations": 1114,
"block_hash": "0000000002b04dde40e0941c8223108ac7b9eb7bd569fc0def2249cef1065239",
"block_height": 1231725,
"time_stamp": "1511596146",
"total_fees": "0"
},
{
"tx_hash": "f6fd2103a2d058083ccbd83b86848582438adeb6efc74a4f6bdab1d2ba0d2e82",
"amount": "-17332",
"num_confirmations": 1112,
"block_hash": "00000000018d98ab78c197ce6a66fa3923c491376cc4e244eedc48a2b2808fbf",
"block_height": 1231727,
"time_stamp": "1511598595",
"total_fees": "7332"
},
{
"tx_hash": "81f8cb31f888ef0446f963b6b08576e83b1105b3b138c30e4c1d6d04f8ebe191",
"amount": "-507332",
"num_confirmations": 1067,
"block_hash": "000000005e06aedd36733de436ee1b5cee382ed6da673e218a9036ed308f524d",
"block_height": 1231772,
"time_stamp": "1511610581",
"total_fees": "7332"
},
{
"tx_hash": "2e0f6a7f0924c5c8abe1bb9a8f41b926d7124d07ecc81b886a376a294d12878b",
"amount": "-507332",
"num_confirmations": 1065,
"block_hash": "00000000681aec6cda6bccb1bc2edcbeeabc75d57e4548744c64207fed7c0d25",
"block_height": 1231774,
"time_stamp": "1511613004",
"total_fees": "7332"
}
]
}

When I restart lnd, the channel opening goes through.

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When I restart lnd, the channel opening goes through.

This has been fixed with lightningnetwork/lnd@c986e52. Closing.

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