clockworklabs/SpacetimeDB · error · anyhow::Error

Login required to publish to maincloud server

Error message

Login required to publish to maincloud server

What it means

`spacetime dev` determined the publish target needs maincloud, found no saved login token, and the user declined the sign-in prompt. Because `--server maincloud` was passed explicitly, the CLI aborts instead of silently falling back to the local server (the fallback only applies when maincloud was inferred from config targets).

Solutions

1. Re-run and accept the sign-in prompt, or log in first: `spacetime login`
2. Provide a token non-interactively via the CLI config or environment so no prompt is needed
3. Drop `--server maincloud` if the local server was actually intended

Example fix

# before
spacetime dev --server maincloud    # declined sign-in

# after
spacetime login
spacetime dev --server maincloud

// before publishing to maincloud, ensure a token exists
if resolved_server == "maincloud" && config.spacetimedb_token().is_none() {
    anyhow::bail!("run `spacetime login` first or provide a token");
}

When it happens

Trigger: `spacetime dev --server maincloud` with no spacetimedb token configured and 'No' at the 'Would you like to sign in now?' prompt; or maincloud publish/generate targets in config with no token.

Common situations: Fresh machines, expired or missing credentials, CI environments without a token, users working offline.

Related errors

• Failed to get token
• Failed to request token
• Response data is missing.
• Session token is missing in response.
• Unknown error

AI-assisted analysis of clockworklabs/SpacetimeDB@3653d2ed49 (2026-08-20). Data as JSON: /api/errors/e9dbf5adce2871d5. Report an issue: GitHub.

Appendix: source

Thrown at crates/cli/src/subcommands/dev.rs:634

                c.iter_all_targets().any(|target| {
                    target
                        .additional_fields
                        .get("server")
                        .and_then(|v| v.as_str())
                        .map(|s| s == "maincloud")
                        .unwrap_or(false)
                })
            })
            .unwrap_or(false);

    if needs_maincloud_login && config.spacetimedb_token().is_none() {
        let should_login = Confirm::new()
            .with_prompt("Would you like to sign in now?")
            .default(true)
            .interact()?;
        if !should_login && server_from_cli.is_some() {
            // The user explicitly provided --server maincloud but doesn't want to log in
            anyhow::bail!("Login required to publish to maincloud server");
        } else if !should_login {
            // Print warning saying that without logging in we will use local server regardless
            // of what their default server is in their config
            println!(
                "{} {}",
                "Warning:".yellow().bold(),
                "Without logging in, the local server will be used regardless of your default server.".dimmed()
            );
            // Switch the server to local
            resolved_server = "local";
        } else {
            // Login
            get_login_token_or_log_in(&mut config, Some(resolved_server), !force).await?;
        }
    }

    // Determine client command: CLI flag > config file > auto-detect (and save)
    let server_only = args.get_flag("server-only");

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