# Invalid gas tip cap. It must be set to the same value as gas unit price ¿?

**URL:** <https://devforum.kaia.io/t/invalid-gas-tip-cap-it-must-be-set-to-the-same-value-as-gas-unit-price/4978>\
**Category:** Kaia\
**Tags:** klaytn\
**Created:** [4월 24, 2022, 6:42오후 UTC](https://devforum.kaia.io/t/invalid-gas-tip-cap-it-must-be-set-to-the-same-value-as-gas-unit-price/4978 "2022-04-24T18:42:02Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JTorres](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/jtorres/32/2391_2.png) [@JTorres](https://devforum.kaia.io/u/JTorres)\
**Post date:** [4월 24, 2022, 6:42오후 UTC](https://devforum.kaia.io/t/invalid-gas-tip-cap-it-must-be-set-to-the-same-value-as-gas-unit-price/4978/1 "2022-04-24T18:42:02Z")

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Hi!  
I am trying to deploy an smart contract on Baobab network from inject web3 → [REMIX.ethereum.org](http://REMIX.ethereum.org) and Metamask but tis return the next error:

`creation of Contract errored: [ethjs-query] while formatting outputs from RPC '{"value":{"code":-32603,"data":{"code":-32000,"message":"Invalid gas tip cap. It must be set to the same value as gas unit price."}}}'`

Any idea how to solve it?  
Thanks

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**Author:** ![Bliss\_Radio](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/bliss_radio/32/2683_2.png) [@Bliss\_Radio](https://devforum.kaia.io/u/Bliss_Radio)\
**Post date:** [6월 13, 2022, 1:24오후 UTC](https://devforum.kaia.io/t/invalid-gas-tip-cap-it-must-be-set-to-the-same-value-as-gas-unit-price/4978/2 "2022-06-13T13:24:56Z")

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Hey, are you fix this problem?

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**Author:** ![Gorgom9](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/gorgom9/32/2796_2.png) [@Gorgom9](https://devforum.kaia.io/u/Gorgom9)\
**Post date:** [8월 2, 2022, 9:44오전 UTC](https://devforum.kaia.io/t/invalid-gas-tip-cap-it-must-be-set-to-the-same-value-as-gas-unit-price/4978/3 "2022-08-02T09:44:55Z")

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I have same problem ☹

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**Author:** ![jack\_jin](https://yyz1.discourse-cdn.com/flex035/user_avatar/devforum.kaia.io/jack_jin/32/2305_2.png) [@jack\_jin](https://devforum.kaia.io/u/jack_jin)\
**Post date:** [8월 2, 2022, 10:22오전 UTC](https://devforum.kaia.io/t/invalid-gas-tip-cap-it-must-be-set-to-the-same-value-as-gas-unit-price/4978/4 "2022-08-02T10:22:34Z")

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Hi, you need to set the gasTipCap to 250 ston (10^9).  
This constraint will be disabled after Magma hard fork.

I’m wondering If you are using injected web3 provider like metamask.  
If so, you can use advanced gas control menu.  
ref. [https://docs.klaytn.foundation/dapp/tutorials/connecting-metamask#send-klay](https://docs.klaytn.foundation/dapp/tutorials/connecting-metamask#send-klay)