<p><code>estimatesmartfee</code> requires that bitcoind have been running long enough to gather data about the current fee rates on the network. This can take some time. Try running it again after a few hours, or a day or so, once it has collected data.</p>

CC BY-SA 4.0
2018-07-22T22:22:10.250Z
2018-07-22T22:22:10.250Z
Raghav Sood
<p>In previous versions of bitcoin-cli I've successfully used <code>estimatesmartfee 2</code> syntax. But now cli answers <code>{'errors': ['Insufficient data or no feerate found'], 'blocks': 0}</code>. How should I estimate fee now?</p>

CC BY-SA 4.0
2018-07-22T22:10:43.087Z
How long has bitcoind been running?
Raghav Sood
CC BY-SA 4.0
2018-07-22T22:16:11.420Z
About 10 minutes
Vassily
CC BY-SA 4.0
2018-07-22T22:16:45.200Z
I use bitcoind v 0.16
Vassily
<transaction-fees><fee-estimation>
Bitcoin cli asks to use estimatesmartfee with new syntax that is not described in docs
Vassily
# Bitcoin cli asks to use estimatesmartfee with new syntax that is not described in docs

(Asked by: username_0 on 2018-07-22)

In previous versions of bitcoin-cli I've successfully used `estimatesmartfee 2` syntax. But now cli answers `{'errors': ['Insufficient data or no feerate found'], 'blocks': 0}`. How should I estimate fee now?

**Tags:** transaction-fees, fee-estimation

> **Comments:**
> **username_1**: How long has bitcoind been running?  
> **username_0**: About 10 minutes  
> **username_0**: I use bitcoind v 0.16  

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## 1 answers

### Answer by username_1 on 2018-07-22. Score: 5 | Accepted answer

`estimatesmartfee` requires that bitcoind have been running long enough to gather data about the current fee rates on the network. This can take some time. Try running it again after a few hours, or a day or so, once it has collected data.


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