# Toolchain with name 'testnet ....... 'does not exist

**URL:** <https://forum.fuel.network/t/toolchain-with-name-testnet-does-not-exist/5596>\
**Category:** Fuel Network\
**Tags:** testnet, feedback\
**Created:** [June 6, 2024, 11:53pm UTC](https://forum.fuel.network/t/toolchain-with-name-testnet-does-not-exist/5596 "2024-06-06T23:53:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dimi](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@dimi](https://forum.fuel.network/u/dimi)\
**Post date:** [June 6, 2024, 11:53pm UTC](https://forum.fuel.network/t/toolchain-with-name-testnet-does-not-exist/5596/1 "2024-06-06T23:53:55Z")

</div>

hey  
when i want to set default testnet after updating fuel  
i face this error  
Toolchain with name ‘testnet-x86\_64-unknown-linux-gnu’ does not exist  
and there is no test lib installed  
when i use fuelup show .  
how can i install this testnet module  
tried all of these cmds:  
fuelup toolchain install latest  
fuelup self update  
fuelup update  
fuelup default latest  
fuelup default testnet

```auto
root@node2:~# fuelup show
Default host: x86_64-unknown-linux-gnu
fuelup home: /root/.fuelup

installed toolchains
--------------------
latest-x86_64-unknown-linux-gnu (default)

active toolchain
----------------
latest-x86_64-unknown-linux-gnu (default)
  forc : 0.60.0
    - forc-client
      - forc-deploy : 0.60.0
      - forc-run : 0.60.0
    - forc-crypto : 0.60.0
    - forc-debug : 0.60.0
    - forc-doc : 0.60.0
    - forc-explore : 0.28.1
    - forc-fmt : 0.60.0
    - forc-lsp : 0.60.0
    - forc-tx : 0.60.0
    - forc-wallet : 0.7.1
  fuel-core : 0.26.0
  fuel-core-keygen : 0.26.0

fuels versions
--------------
forc : 0.62.0
forc-wallet : 0.62.0
root@node2:~# fuelup default testnet
Toolchain with name 'testnet-x86_64-unknown-linux-gnu' does not exist

```

---

<div class="post-metadata">

**Author:** ![naz3eh](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/naz3eh/32/2025_2.png) [@naz3eh](https://forum.fuel.network/u/naz3eh)\
**Post date:** [June 7, 2024, 5:27am UTC](https://forum.fuel.network/t/toolchain-with-name-testnet-does-not-exist/5596/2 "2024-06-07T05:27:33Z")

</div>

Hey @dimi, firstly welcome to the community.  
Its strange that its happening to you. Looking at the steps you mentioned, it shouldnt be the case. Though can you follow the installation steps mentioned in the below guide thoroughly and let me know how it goes? [Installation | Fuel Docs](https://docs.fuel.network/guides/installation/)