# Mistake in contract deploy

**URL:** <https://forum.fuel.network/t/mistake-in-contract-deploy/2964>\
**Category:** Tooling and IDE\
**Created:** [August 2, 2023, 3:17pm UTC](https://forum.fuel.network/t/mistake-in-contract-deploy/2964 "2023-08-02T15:17:14Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![PaulZhemanov](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/paulzhemanov/32/2401_2.png) [@PaulZhemanov](https://forum.fuel.network/u/PaulZhemanov)\
**Post date:** [August 2, 2023, 3:17pm UTC](https://forum.fuel.network/t/mistake-in-contract-deploy/2964/1 "2023-08-02T15:17:14Z")

</div>

Hi! At the time of the contract deploy on latest toolchain

```auto
forc deploy --node-url http://beta-3.fuel.network/graphql --gas-price 1 

```

I get this error

```auto
Error: Response errors; Unknown field "messageReceiptCount" on type "Header".; 
Unknown field "messageReceiptRoot" on type "Header".; 
Unknown field "chainId" on type "ConsensusParameters".
``
Can you tell me how to fix it?

My contract link 

```

> <https://github.com/PaulZhemanov/nft-ticketing-contract/blob/master/contract/src/main.sw>

---

<div class="post-metadata">

**Author:** ![sandusky](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/sandusky/32/1313_2.png) [@sandusky](https://forum.fuel.network/u/sandusky)\
**Post date:** [August 2, 2023, 3:47pm UTC](https://forum.fuel.network/t/mistake-in-contract-deploy/2964/2 "2023-08-02T15:47:36Z")

</div>

hi there! @PaulZhemanov  
Please attach the output of

```auto
 $ fuelup show

```

So we can know the version of the toolchain you are working with.

Thanks 🌴

---

<div class="post-metadata">

**Author:** ![PaulZhemanov](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/paulzhemanov/32/2401_2.png) [@PaulZhemanov](https://forum.fuel.network/u/PaulZhemanov)\
**Post date:** [August 2, 2023, 3:50pm UTC](https://forum.fuel.network/t/mistake-in-contract-deploy/2964/3 "2023-08-02T15:50:48Z")

</div>

```auto

Default host: aarch64-apple-darwin
fuelup home: /Users/master/.fuelup

installed toolchains
--------------------
beta-3-aarch64-apple-darwin
latest-aarch64-apple-darwin (default)
latest-2023-01-18-aarch64-apple-darwin
new-creation

active toolchain
-----------------
latest-aarch64-apple-darwin (default)
  forc : 0.42.1
    - forc-client
      - forc-deploy : 0.42.1
      - forc-run : 0.42.1
    - forc-doc : 0.42.1
    - forc-explore : 0.28.1
    - forc-fmt : 0.42.1
    - forc-index : 0.18.5
    - forc-lsp : 0.42.1
    - forc-tx : 0.42.1
    - forc-wallet : 0.2.4
  fuel-core : 0.18.3
  fuel-indexer : 0.18.5

fuels versions
---------------
forc : 0.43
forc-wallet : 0.44.0
```

---

<div class="post-metadata">

**Author:** ![sandusky](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/sandusky/32/1313_2.png) [@sandusky](https://forum.fuel.network/u/sandusky)\
**Post date:** [August 2, 2023, 3:56pm UTC](https://forum.fuel.network/t/mistake-in-contract-deploy/2964/4 "2023-08-02T15:56:02Z")

</div>

So the issue is that you are using latest toolchain on beta-3 infra.

Please run

```auto
fuelup toolchain install beta-3

```

and then

```auto
fuelup default beta-3

```

Let me know if it works!