anchor deploy: Invalid Blockhash

Question

I've been trying to deploy an Anchor program on devnet but it seems to be stuck in the process, and then gives the following error after a while,

$ anchor deploy --provider.cluster d

Error: Custom: Invalid blockhash
There was a problem deploying: Output { status: ExitStatus(unix_wait_status(256)), stdout: "", stderr: "" }.

Seems like its timing out, and could be devnet issue but the Explorer seems to show that devnet is working fine. I'm also able to deploy locally easily on solana-test-validator, so it shouldn't be an issue with the program itself right?

Answer 1

Devnet acts that way sometimes. Sometimes there's too many requests and if your network connection isn't fast enough it times out. I just use solana playground to deploy to devnet now. It's more convenient. https://beta.solpg.io.

1. Import your solana cli wallet from keypair.json on your local environment. The playground wallet is located on the top right.
2. Click on the 2nd icon on the top left and import your program keypair and .so file from the /target/deploy folder.
3. Deploy.

Answer 2

In your project's root directory, there is an Anchor.toml file.

Within that file, there is a [provider] section.

[provider]
cluster = "devnet"
wallet = "~/.config/solana/id.json"

The cluster = "xyz" line needs to point to the same cluster that you are trying to deploy to.

There are four possible values: localnet, devnet, testnet and mainnet.

So when trying to deploy to devnet, make sure you have cluster = "devnet" in the [provider] section of your Anchor.toml.

Answer 3

Update your Anchor and Solana CLI.

For Solana:

sh -c "$(curl -sSfL https://release.solana.com/v1.10.32/install)"

For Anchor:

cargo install --git https://github.com/coral-xyz/anchor avm --locked --force

Update your Anchor.toml file accordingly with the new versions.

Answer 4

Use a custom RPC , such as https://devnet.genesysgo.net the default public ones aren't suitable for that.