# Cannot estimate gas

**URL:** <https://forum.balancer.fi/t/cannot-estimate-gas/3170>\
**Category:** General Chat\
**Created:** [May 16, 2022, 3:01pm UTC](https://forum.balancer.fi/t/cannot-estimate-gas/3170 "2022-05-16T15:01:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![IPaILIU](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.balancer.fi/ipailiu/32/1429_2.png) [@IPaILIU](https://forum.balancer.fi/u/IPaILIU)\
**Post date:** [May 16, 2022, 3:01pm UTC](https://forum.balancer.fi/t/cannot-estimate-gas/3170/1 "2022-05-16T15:01:18Z")

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Hello I’m trying to withdraw from a Pool (WBTC - renBTC - sBTC) but i get the “Cannot estimate gasTransaction may fail or require manual gas limit.”. I’ve tried to remove only one token, I’ve raised the Slippage tolerance, and both in legacy and eip 1559… I cannot have the metamask transaction to prompt… how could I solve? Help!

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**Author:** ![IS21i521](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.balancer.fi/is21i521/32/1453_2.png) [@IS21i521](https://forum.balancer.fi/u/IS21i521)\
**Post date:** [May 24, 2022, 11:09am UTC](https://forum.balancer.fi/t/cannot-estimate-gas/3170/2 "2022-05-24T11:09:39Z")

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Hi  
Had the same issue, just solved it by revoking previous token approvals to balancer.