An error occurred while deploying to devnet with anchor

Question

I can deploy successfully using the localhost, but when deploying to the devnet, I encounter this error. Could someone please help me?

Deploying program "user_profile_backend"...
Program path: /home/pluto/Dev/UserProfile_Solana/user-profile-backend/target/deploy/user_profile_backend.so...
thread 'main' panicked at cli/src/program.rs:2590:26:
Should return a valid tpu client: PubsubError(ConnectionError(Io(Os { code: 101, kind: NetworkUnreachable, message: "Network is unreachable" })))
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
There was a problem deploying: Output { status: ExitStatus(unix_wait_status(25856)), stdout: "", stderr: "" }.

Anchor.toml

[toolchain]

[features]
seeds = true
skip-lint = false

[programs.localnet]
user_profile_backend = "***"

[registry]
url = "https://api.apr.dev"

[provider]
cluster = "Devnet"
wallet = "/home/pluto/.config/solana/id.json"

[scripts]
test = "yarn run ts-mocha -p ./tsconfig.json -t 1000000 tests/**/*.ts"

Cargo.toml

[workspace]
members = [
    "programs/*"
]

[profile.release]
overflow-checks = true
lto = "fat"
codegen-units = 1
[profile.release.build-override]
opt-level = 3
incremental = false
codegen-units = 1

Answer 1

Devnet seems to be working fine (You can check out https://explorer.solana.com and change the network to Devnet on top right and scroll down to see its status)

If you had by chance misconfigured to some invalid URL, then the error is different and tells you straight away that you have to use a valid cluster. Examples:

Perhaps the default devnet RPC (https://api.devnet.solana.com) was overloaded with requests at the time you were trying. Good to hear your problem is solved now!