frame-support cannot find vec when upgrade to SDK 1.13

Question

error[E0432]: unresolved import `frame_support`
   --> /home/simson/.cargo/registry/src/index.crates.io-6f17d22bba15001f/frame-system-35.0.0/src/lib.rs:257:1
    |
257 | #[frame_support::pallet]
    | ^^^^^^^^^^^^^^^^^^^^^^^^ no `vec` in `__private`
    |
    = note: this error originates in the attribute macro `frame_support::pallet` (in Nightly builds, run with -Z macro-backtrace for more info)
help: consider importing one of these items instead
    |
257 | scale_info::prelude::vec
    |
257 | sp_std::vec
    |
257 | std::vec
    |

I suspect this is related to feature std not begin defined for some crate, but how do I find which one lacks this feature definition?

Could this be related to ORML?

Answer 1

Looks like the last two versions got released of frame-support-procedural got released accidentally as patch releases. To fix this, you need to add the following import somewhere in your workspace:

frame-support-procedural = "=30.0.0"

This should imported frame-support-procedural at exactly 30.0.0. The version that should match your frame-support.