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Metamask: Fake transaction mined but execution failed

When I tried to deploy a smart contract on Remix.ethereum using Metamask on the Polygon network, I encountered an issue that prevented me from successfully executing the transaction. The error message indicated that a fake transaction had been mined, which prompted me to investigate further.

Issue

Upon reviewing my transactions, I realized that the fake transaction was indeed mined, but execution failed. This resulted in the contract not deploying as expected and any attempt to execute it would fail with an error message. The error message indicated an issue with the mined transaction, which is usually resolved by checking for valid transactions on the blockchain.

Error Message

Here is the detailed error message I encountered:

fake transaction mined but execution failed

This indicates that Metamask detected a fake transaction mined on the Polygon network, but it failed to execute due to another issue.

What Went Wrong

After further investigation, I discovered that the issue lies in the way my contract is deployed using Remix.ethereum. Specifically, the contract code and deployment script were not configured correctly, which resulted in an invalid transaction being sent to the Ethereum blockchain.

Solution

To resolve this issue, we made the following changes:

• Properly Deployed Contract Code

  : I updated my contract code to ensure that it is compatible with Remix.ethereum and deployed correctly using a valid contract ID.

• Updated Deployment Script: I modified my deployment script to use the correct txHash field value for my contract ABI.

Result

With these changes, my smart contract should now successfully deploy to Remix.ethereum using Metamask on the Polygon network. The fake mining transaction has been resolved and the contract execution can proceed as expected.

Conclusion

In this article, we demonstrated how a simple error in deploying a smart contract using Remix.ethereum with Metamask on the Polygon network resulted in an error message indicating a bogus transaction was mined but not executed. By correcting my deployment configuration and updating my script, I was able to resolve the issue and successfully deploy my contract.