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I am trying to implement the PSP22 token standard but getting errors when building my contract. The errors are:

#[brush::contract]

| ^^^^^^^^^^^^^^^^^^ use of undeclared crate or module psp22metadata_external

impl PSP22 for MyPSP22 {}

| ^^^^^ use of undeclared type PSP22

impl PSP22Metadata for MyPSP22 {}

| ^^^^^^^^^^^^^ use of undeclared type PSP22Metadata

#[derive(Default, SpreadAllocate, PSP22Storage, PSP22MetadataStorage)] | ^^^^^^^^^^^^^^^^^^^^

error: cannot find attribute PSP22StorageField in this scope

I am following this tutorial put up here via here.

My brush crate version is v1.6.1

I noticed the import statement which is

use brush::contracts::psp22::extensions::metadata::*; is not resolving at all.

How can i go about this?

1 Answer 1

4

Turns out i was missing a features flag on my brush dependency. This solved it for me:

brush = { tag = "v1.6.1", git = "https://github.com/Supercolony-net/openbrush-contracts", default-features = false, features = ["psp22"] }

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