cargo build --release failed：could not find sync in ark_std

[yizhihuaqi]

when I run cargo build --release ，it reports error：could not find 'sync' in 'ark_std' .

[Rajil1213]

Ran into a similar issue while building another ark- package and solved it by adding the std patch in Cargo.toml:

[patch.crates-io]
ark-std = { git = "https://github.com/arkworks-rs/std/" }