Substrate upgrade to 0.9.26: the trait bound `Event: From<pallet_transaction_payment::Event<Runtime>>` is not satisfied

Question

When trying to upgrade to Substrate v 0.9.26, I see this error:

the trait bound `Event: From<pallet_transaction_payment::Event<Runtime>>` is not satisfied

In my config I have the following:

impl pallet_transaction_payment::Config for Runtime {
    type Event = Event;
    ...

As you can see, the trait is implemented. Why is this error getting thrown?

Answer 1

Make sure to include Event module part in your frame_support::construct_runtime! like so:

TransactionPayment: pallet_transaction_payment::{Pallet, Storage, Event<T>}

• https://github.com/paritytech/substrate/blob/e8a7d161f39db70cb27fdad6c6e215cf493ebc3b/frame/transaction-payment/src/lib.rs#L805

More Info:

• https://paritytech.github.io/substrate/master/frame_support/macro.construct_runtime.html