<p>I Finally got the solution here: <a href="https://github.com/input-output-hk/haskell.nix/issues/1427" rel="nofollow noreferrer">https://github.com/input-output-hk/haskell.nix/issues/1427</a></p>

CC BY-SA 4.0
2022-04-09T00:11:40.860Z
2022-04-09T00:11:40.860Z
agocorona
<p>I modified slightly  cabal.project of the  plutus-apps to serve as base for my own application repo. It includes another repo of my own that is also a sligh modification of the plutus repo. If my own git repo that substitutes plutus is xxxx. Now this error happens when executing nix-shell</p>
<blockquote>
<p>nix-shell
error: attribute 'xxxx' missing....</p>
</blockquote>
<p>I suppose that this attribute should be added somewhere in flakes or some other nix configuration but I had no clue.  Looking for information I figured out and I added it to flake.nix. Since my repo is a modification of Plutus, I put it instead of the plutus repo</p>
<pre><code>plutus-core = {
  url = &quot;github:agocorona/plutus&quot;; #&quot;github:input-output-hk/plutus&quot;
  flake = false;
};
</code></pre>
<p>But the error is the same.</p>

<plutus><nix>
nix attribute not found setting up Dapp repo
# nix attribute not found setting up Dapp repo

(Asked by: username_0 on 2022-03-23)

I modified slightly  cabal.project of the  plutus-apps to serve as base for my own application repo. It includes another repo of my own that is also a sligh modification of the plutus repo. If my own git repo that substitutes plutus is xxxx. Now this error happens when executing nix-shell

nix-shell
error: attribute 'xxxx' missing....

I suppose that this attribute should be added somewhere in flakes or some other nix configuration but I had no clue.  Looking for information I figured out and I added it to flake.nix. Since my repo is a modification of Plutus, I put it instead of the plutus repo
plutus-core = {
  url = "github:agocorona/plutus"; #"github:input-output-hk/plutus"
  flake = false;
};

But the error is the same.

**Tags:** plutus, nix

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## 1 answers

### Answer by username_0 on 2022-04-09. Score: 0

I Finally got the solution here: <https://github.com/input-output-hk/haskell.nix/issues/1427>


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