Tutorial 4: kittes pallet serde import error on both monthly-2021-11-1 and monthly-2021-11-0

_Originally posted by @luatnd in https://github.com/substrate-developer-hub/substrate-docs/issues/516#issuecomment-973129038_

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For the latest guide, I got this error on the tutorial 4: kittes pallet: if I using monthly-2021-10

error[E0463]: can't find crate for `serde`
  --> pallets/kitties/src/lib.rs:42:37
   |
42 |     #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
   |                                        ^^^^^^^^^ can't find crate
   |
   = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)

My solution is update all dependencies to latest tag following this commit

But… without success 😄

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Also the case for me using the newly updated kickstart-substrate that has frame-system monthly-2021-11-1 ‘4.0.0-dev’

[sacha-l]

👍🏻 Yes - good call.

[pyramid-songs]

Thanks @sacha-l - adding a serde dependency into the pallet Cargo.toml worked and I can compile my code. I was under the impression that frame_support was going to handle the serde functions because of this line:

#[cfg(feature = "std")]
use frame_support::serde::{Deserialize, Serialize};

As for the tutorial documentation, definitely worth prompting the user to add the serde dependency in step 2 of this section or instead editing the default pallet Cargo.toml that comes with the kickstart so they don’t have to do it themselves.