Cargo build-sbf error

Lock file version 4 requires -Znext-lockfile-bump

I changed the version, but the error is still there. I also tried rebuilding the Cargo.lock file, but it didn’t fix the problem.

Your Rust version is too old. You must install the current version. If you have rustup, then run:

rustup update

If that doesn't work because you have Rust packaged from some other source, then uninstall Rust, and install a good version from https://rustup.rs

1 Like

fix here: Fixed and resolved error: failed to parse lock file at:

anarchsun
i was getting this berror when cargo build-sbf or anchor build ..:

cargo build-sbf
error: failed to parse lock file at: /home/anrchsun/devs/ana-cain/Cargo.lock

but if you all could read carefully the solution was given in error message:

Caused by:
lock file version 4 requires -Znext-lockfile-bump

so i ran :slight_smile:

,,, bash
cargo build-sbf -- -Znext-lockfile-bump
''''
and everything worked fine...
Compiling borsh v0.9.3
Compiling anchor-attribute-access-control v0.30.1
Compiling anchor-attribute-account v0.30.1
Compiling anchor-attribute-error v0.30.1
Compiling anchor-attribute-event v0.30.1
Compiling anchor-attribute-constant v0.30.1
Compiling anchor-derive-serde v0.30.1
Compiling anchor-attribute-program v0.30.1
Compiling anchor-derive-accounts v0.30.1
^[[B Building [=======================> ] 165/169: solana-program, solana-program
Compiling anchor-lang v0.30.1
Compiling ana-chain v0.0.0 (/home/anrchsun/devs/ana-cain/program)
Finished release [optimized] target(s) in 1m 31s..

Updating your toolchain is the solution as the first reply answers.

But there is also another possible outdated cargo source other than cargo CLI.
If your cargo plugin CLI uses an old cargo lib, the behavior of parsing lockfile is determined by the lib, even though your cargo CLI is the latest.