App stopped working, when redeploying getting causes error
karalkal
HOBBYOP

a year ago

Hi.
I have this app which was working fine and has not been updated for a year. For no apparent reason it does not work any more and any attempt to redeploy fails with the following error:

error:
       … while calling the 'derivationStrict' builtin
         at :34:12:
           33|
           34|   strict = derivationStrict drvAttrs;
             |            ^
           35|
       … while evaluating derivation '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'
         whose name attribute is located at /nix/store/lgcjj6s23v2203zyihsd0j26wh1saj0c-source/pkgs/stdenv/generic/make-derivation.nix:300:7
       … while evaluating attribute 'passAsFile' of derivation '5148520bfab61f99fd25fb9ff7bfbb50dad3c9db-env'
         at /nix/store/lgcjj6s23v2203zyihsd0j26wh1saj0c-source/pkgs/build-support/trivial-builders/default.nix:88:7:
           87|       inherit buildCommand name;
           88|       passAsFile = [ "buildCommand" ]
             |       ^
           89|         ++ (derivationArgs.passAsFile or []);
       (stack trace truncated; use '--show-trace' to show the full, detailed trace)
       error: attribute 'dev' missing
       at /app/.nixpacks/nixpkgs-5148520bfab61f99fd25fb9ff7bfbb50dad3c9db.nix:19:13:
           18|         '')
           19|         gcc postgresql_16.dev python38
             |             ^
           20|       ];
       Did you mean doc?
level:"info"
source:"buildkit"
stream:2
timestamp:"2025-03-01T22:04:30.365805564Z"
type:"log"
vertex:"sha256:2bc09f646a4a9e96f853f8e4ab38abe95300aceeba9d292c746a542f53bef0ea"

I have tried the solutions proposed in the thread below (removing the runtime.txt file and adding the variables) and still could not solve the issue:
https://station.railway.com/questions/error-attribute-dev-missing-nixpack-0e3695bf
Any help will be greatly appreciated.

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Solved

3 Replies

brody
EMPLOYEE

a year ago

Hello,

You have yet to Deploy the changes after adding the two variables -

Attachments

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karalkal
HOBBYOP

a year ago

Hi.

I did not now that I had to re-deploy after the new variables were added, I thought that they become accessible straight away.

You, sir, are a legend!

P.S. My app is still not working but this is because ElephantSQL where my DB was hosted are out of business apparently.

brody
EMPLOYEE

a year ago

Happy to help!

And yeah your DB provider going out of business sure would bring down your app haha.

Status changed to Solved brody • about 1 year ago

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