# Aeson exception: Error in $: Missing required field, either ByronGenesisFile **URL:** \ **Category:** Misc Dev Talk\ **Created:** [24 September 2021 18:33 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229 "2021-09-24T18:33:05Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 18:33 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/1 "2021-09-24T18:33:05Z")
Hi Guys Am trying to start the node but receive the error: Aeson exception: Error in $: Missing required field, either ByronGenesisFile or GenesisFile I have tried hard coding the path and everything Does anybody know what this error means please ? thanks ---
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [24 September 2021 18:41 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/2 "2021-09-24T18:41:00Z")
Download the new files from here and restart the node [https://hydra.iohk.io/build/7654130/download/1/index.html](https://hydra.iohk.io/build/7654130/download/1/index.html) ---
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 18:47 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/3 "2021-09-24T18:47:18Z")
Hi Alex thanks - I tried that - same error. Do I need to edit the config files at all first ? ---
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [24 September 2021 18:54 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/4 "2021-09-24T18:54:31Z")
> [@donneda](#): > > Missing required field, either ByronGenesisFile or GenesisFile Did u downloaded all files? ---
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 18:54 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/5 "2021-09-24T18:54:46Z")
yes all of them ---
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [24 September 2021 18:55 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/6 "2021-09-24T18:55:03Z")
U are using coincashew guide right? ---
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 18:56 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/7 "2021-09-24T18:56:18Z")
Im following the turorial here: [![](https://us1.discourse-cdn.com/flex023/uploads/cardano/original/3X/c/f/cf4de2ae5acf879a9a6a4cffc473be233c009e07.jpeg "Cardano stake pool tutorial | Download configuration files and run the node") ](https://www.youtube.com/watch?v=miYXZFBrOJ8) And using this guide: > **[How to run cardano-node | Cardano Developer Portal](https://developers.cardano.org/docs/get-started/running-cardano/)** > > This guide will explain and show you how to run the cardano-node and components on your system. ---
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [24 September 2021 18:58 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/8 "2021-09-24T18:58:37Z")
What version did u installed? ---
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 19:01 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/9 "2021-09-24T19:01:58Z")
ghc --version The Glorious Glasgow Haskell Compilation System, version 8.10.7 cabal --version cabal-install version 3.4.0.0 compiled using version 3.4.0.0 of the Cabal library | Distributor ID: | Ubuntu | | --- | --- | | Description: | Ubuntu 20.04.3 LTS | | Release: | 20.04 | | Codename: | focal | ---
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [24 September 2021 19:03 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/10 "2021-09-24T19:03:24Z")
cardano-node - -version ---
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 19:04 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/11 "2021-09-24T19:04:27Z")
cardano-node 1.27.0 - linux-x86\_64 - ghc-8.10 git rev 8fe46140a52810b6ca456be01d652ca08fe730bf ---
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [24 September 2021 19:05 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/12 "2021-09-24T19:05:16Z")
Install 1.29.0 ---
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 19:06 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/13 "2021-09-24T19:06:55Z")
ok will start afresh and give that a try ---
**Author:** ![Alexd1985](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/alexd1985/32/23759_2.png) [@Alexd1985](https://forum.cardano.org/u/Alexd1985)\ **Post date:** [24 September 2021 19:11 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/14 "2021-09-24T19:11:33Z")
If u will start from 0 u can try my guide > [@How to set up a POOL in a few minutes - and register using CNTOOLS](https://forum.cardano.org/t/how-to-set-up-a-pool-in-a-few-minutes-and-register-using-cntools/48767): > > Hello everybody, Have you thinking to run a Cardano POOL but but you don’t have advanced knowledge in linux? No problem! Today I will show you how to setup a Cardano POOL using CNTOOLS in just a few minutes/steps: But first, few recommendations for security of the nodes (should be applied on all nodes): create an username/password, change the default ssh connections and deactivate ssh for root user sudo adduser example where example is your new user ; here is recomanded to use a STRONG… For testnet u will need to run: - from step 1 ```auto ./prereqs.sh -n ``` - for STEP 2 ```auto git checkout 1.29.0 ``` And DO NOT run (skip it) ```auto git pull origin maste ``` ---
**Author:** ![donneda](https://avatars.discourse-cdn.com/v4/letter/d/ed8c4c/32.png) [@donneda](https://forum.cardano.org/u/donneda)\ **Post date:** [24 September 2021 21:34 UTC](https://forum.cardano.org/t/aeson-exception-error-in-missing-required-field-either-byrongenesisfile/76229/15 "2021-09-24T21:34:34Z")
ok thanks. will try it now