Re-simulate Existing Transactions

Here's an example of how to re-simulate a transaction that failed from incorrect calldata.

Step 1: Locate and Analyze the Failed Transaction

Open Walnut and use the search to find the transaction with hash: 0x04e9aaf268efe3fd9a328f5d40867231dfae14549126db8ed5471d3b3ed4da78.

Analyze Transaction

The transaction reverted with this error: "Number must be greater than 0". It originates from the is_positive function call.

Reviewing the calldata shows the function received 0, which violates the function's requirement for a positive number.

Step 2: Re-simulate the Transaction

To resolve the issue, modify the calldata by replacing the invalid 0x0 with a valid positive number like 0x5. This satisfies the is_positive requirement.

Re-simulation Example Form Field

Click "Run Simulation" to execute the transaction with the updated calldata.

Step 3: Check the Simulation Result

With the updated calldata, the transaction succeeds. The argument 0x5 satisfies the is_positive requirement.

You can view the results here.