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Aaveator.
Mar 10, 2023
Expert Q&A

Error requesting test USDC from Mumbai faucet: Cannot estimate gas & may require manual limit

Hello everyone,

I'm trying to request some test USDC on my Mumbai wallet, but I keep getting the following error on the faucet:

cannot estimate gas; transaction may fail or may require manual gas limit (error={"reason":"processing response error","code":"SERVER_ERROR","body":"{"jsonrpc":"2.0","id":263,"error":{"code":-32000,"message":"execution reverted"}}","error":{"code":-32000},"requestBody":"{"method":"eth_estimateGas","params":[{"value":"0x0","from":"0xa3b09fd15c22c1127fef5b7dc973f42c4d8248a2","to":"0xc1eb89da925cc2ae8b36818d26e12ddf8f8601b0","data":"0x40c10f190000000000000000000000009aa7fec87ca69695dd1f879567ccf49f3ba417e200000000000000000000000000000000000000000000000000000002540be400"}],"id":263,"jsonrpc":"2.0"}","requestMethod":"POST","url":"https://polygon-mumbai.g.alchemy.com/v2/demo%22%7D, method="estimateGas", transaction={"from":"0xa3B09fd15c22c1127FEf5b7DC973F42C4d8248a2","to":"0xc1eB89DA925cc2Ae8B36818d26E12DDF8F8601b0","value":{"type":"BigNumber","hex":"0x00"},"data":"0x40c10f190000000000000000000000009aa7fec87ca69695dd1f879567ccf49f3ba417e200000000000000000000000000000000000000000000000000000002540be400","accessList":null}, code=UNPREDICTABLE_GAS_LIMIT, version=providers/5.5.3)

I would appreciate any help or advice that anyone can provide on how I can resolve this issue.

Thank you in advance for your assistance.

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Aaveator.
Mar 15 2023, 13:02

Every asset on the Mumbai faucets have been minted up to the max amount, we’re aware of the issue and working on the fix. In the meantime you can use this to test with this market in a fork environment.

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