<p>The repository is for ubuntu and you're on debian.<br>
So it doesn't have packages for jessie.<br>
Use this instead: <a href="https://github.com/bitcoin/bitcoin/blob/master/doc/build-unix.md" rel="nofollow">https://github.com/bitcoin/bitcoin/blob/master/doc/build-unix.md</a><br>
Hope this helps! :)<br></p>

CC BY-SA 3.0
2016-08-13T12:48:28.297Z
2016-09-12T18:48:14.447Z
2016-09-12T18:48:14.447Z
Web Weave
<p>I have to install bitcoin core to use op_return library. 
But I have difficulties to install correctly bitcoin core. </p>

<p>First I run the command <code>sudo apt-add-repository ppa:bitcoin/bitcoin</code></p>

<p>Second I enter this command: <code>apt-get update</code></p>

<p>But I have error : </p>

<pre><code> Err http://ppa.launchpad.net jessie/main amd64 Packages                
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                                                     
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                               
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                               
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                               
404  Not Found

 W: Failed to fetch http:/ppa.launchpad.net/bitcoin/bitcoin/ubuntu/dists/jessie/main/binary-amd64/Packages  404  Not Found

 E: Some index files failed to download. They have been ignored, or old ones used instead.
</code></pre>

<p>So when I want to do this : <code>apt-get install bitcoin-qt</code>
I have : <code>E: Unable to locate package bitcoin-qt</code></p>

<p>What can I do? </p>

<bitcoin-core><linux><op-return>
Install bitcoin core on debian jessie error
wxcvbn
# Install bitcoin core on debian jessie error

(Asked by: username_0 on 2016-07-25)

I have to install bitcoin core to use op\_return library.
But I have difficulties to install correctly bitcoin core.

First I run the command `sudo apt-add-repository ppa:bitcoin/bitcoin`

Second I enter this command: `apt-get update`

But I have error :

```
 Err http://ppa.launchpad.net jessie/main amd64 Packages                
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                                                     
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                               
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                               
 Err http://ppa.launchpad.net jessie/main amd64 Packages                                               
404  Not Found

 W: Failed to fetch http:/ppa.launchpad.net/bitcoin/bitcoin/ubuntu/dists/jessie/main/binary-amd64/Packages  404  Not Found

 E: Some index files failed to download. They have been ignored, or old ones used instead.

```

So when I want to do this : `apt-get install bitcoin-qt`
I have : `E: Unable to locate package bitcoin-qt`

What can I do?

**Tags:** bitcoin-core, linux, op-return


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## 1 answers

### Answer by username_1 on 2016-08-13. Score: 1

The repository is for ubuntu and you're on debian.  
So it doesn't have packages for jessie.  
Use this instead: <https://github.com/bitcoin/bitcoin/blob/master/doc/build-unix.md>  
Hope this helps! :)


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