<p>I believe you have the same problem reported in the link bellow:</p>

<p><a href="https://askubuntu.com/a/490839">https://askubuntu.com/a/490839</a></p>

<p>Just try to install autoconf. The autoreconf come with it:</p>

<pre><code>sudo apt-get install autoconf
</code></pre>

CC BY-SA 4.0
2019-07-28T22:00:55.670Z
But i have to install ubuntu? cannot do on windows?
Norbert
CC BY-SA 4.0
2019-07-29T17:47:21.297Z
Sorry Norbert, I didn't pay attention to the picture with Windows. Actually you are executing Linux tools, but these tools came with MinGW. In this case you are using the MinGW provided by Git that don't have autoconf. Try to download and install a new copy of MinGW and chose the packages that you need. Then you can open the new MinGW and try to compile again. If you still have problems, an alternative to MinGW is Cygwin.
Clopes
CC BY-SA 4.0
2019-07-28T21:34:28.357Z
2019-07-28T21:34:28.357Z
Clopes
<p>I started learning how to build a blockchain from Antonopoulos book using Git Bash and i have a problem.
I used commands:
 git clone github.com/bitcoin/bitcoin.git
cd bitcoin
git tag
git checkout v0.11.2
and when i try to use command ./autogen.sh
on the screen appear information:
./autogen.sh: line 9: autoreconf: command not found.</p>

<p>Where is the problem? What i do wrong? i need some libraries?</p>

<p><a href="https://i.sstatic.net/pE0Xq.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/pE0Xq.png" alt="enter image description here"></a></p>

<blockchain><development>
I started build my own blockchain based on mastering bitcoin book using git on win7 and i have a problem
Norbert
# I started build my own blockchain based on mastering bitcoin book using git on win7 and i have a problem

(Asked by: username_0 on 2019-07-28)

I started learning how to build a blockchain from Antonopoulos book using Git Bash and i have a problem.
I used commands:
git clone github.com/bitcoin/bitcoin.git
cd bitcoin
git tag
git checkout v0.11.2
and when i try to use command ./autogen.sh
on the screen appear information:
./autogen.sh: line 9: autoreconf: command not found.

Where is the problem? What i do wrong? i need some libraries?

[![enter image description here](https://i.sstatic.net/pE0Xq.png)](https://i.sstatic.net/pE0Xq.png)

**Tags:** blockchain, development


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## 1 answers

### Answer by username_1 on 2019-07-28. Score: 1

I believe you have the same problem reported in the link bellow:
https://askubuntu.com/a/490839
Just try to install autoconf. The autoreconf come with it:
sudo apt-get install autoconf

> **Comments:**
> **username_0**: But i have to install ubuntu? cannot do on windows?  
> **username_1**: Sorry username_0, I didn't pay attention to the picture with Windows. Actually you are executing Linux tools, but these tools came with MinGW. In this case you are using the MinGW provided by Git that don't have autoconf. Try to download and install a new copy of MinGW and chose the packages that you need. Then you can open the new MinGW and try to compile again. If you still have problems, an alternative to MinGW is Cygwin.  

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