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Transaction simulation failed: Error processing instruction 0
Introduction
When creating complex smart contracts in Solana, it is not uncommon to encounter errors that can prevent a transaction from being processed successfully. In this article, we will look at the error message that you may encounter when using the CreateVault function in Solana.
Error Message
The error message given is: “Transaction simulation failed: Error processing instruction 0: The provided owner is not allowed.”
This error typically occurs when attempting to create a vault in Solana. Specifically, the instruction processed by the transaction has the wrong owner.
What does this mean?
When the CreateVault function is called, it will create a new vault on the Solana blockchain. However, if the specified owner of the vault does not match the owner specified in the instructions, the transaction will fail. In this case, the error message indicates that the transaction simulation failed because the specified owner does not have permissions.
What can be done?
To resolve this issue, you can add a check to ensure that the owner matches the owner specified in the instructions before attempting to create the vault. Here is an example of modifying a function:
pub fn create_vault(ctx: Context) -> Result<()>
{
let owner = &mut ctx.accounts....
if owner != &mut ctx.accounts....
{
return Err(&Error::TransactionSimulationFailed("Provided owner is not permitted"));
}
// ... the rest of the function remains the same ...
}
By adding this check, you can ensure that the transaction simulation will only fail if there is a mismatch between the provided owner and the one specified in the instruction.