Error: Cluster must be one of [localnet, testnet, mainnet, devnet] or be an http or https url

[619]

Setting my anchor.toml to cluster = "http://127.0.0.1:8899" or cluster = "localnet" and then running "anchor build", "anchor clean" or "anchor run" all result in Error: Cluster must be one of [localnet, testnet, mainnet, devnet] or be an http or https url. Why does my anchor.toml need to be configured a certain way for anchor to delete files?

[acheroncrypto]

Are you sure cluster is the only field you've changed? Pretty sure those values you set should work. We even have tests in CI using exactly cluster = "localnet", e.g.

anchor/tests/declare-program/Anchor.toml

Line 6 in db6da5c

cluster = "localnet"

There are other places that we use cluster names too. For example, programs.localnet:

anchor/tests/declare-program/Anchor.toml

Line 1 in db6da5c

[programs.localnet]

It would help to debug if you shared the full Anchor.toml.

Why does my anchor.toml need to be configured a certain way for anchor to delete files?

This is because most commands load Anchor.toml to get your configuration, so if there is an error in your configuration, the whole command fails.