lsd_error Local Service Discovery startup error [::1]: Can't assign requested address

[smokracek]

Please provide the following information

libtorrent version (or branch): 2.0.8

platform/architecture: MacOS Ventura, x86

compiler and compiler version: Clang 14.0.0

please describe what symptom you see, what you would expect to see instead and how to reproduce it.

I'm doing a fairly simple setup where I add a magnet link to a session and poll for alerts, with the lt::session object is held in a static singleton.

client_session.cpp:

ClientSession::ClientSession() {
        lt::settings_pack settings;
        settings.set_int(
            lt::settings_pack::alert_mask, 
            lt::alert_category::status 
            | lt::alert_category::error
            | lt::alert_category::storage);
        lt::session session_(settings);
    }

void ClientSession::addMagnet(const std::string& magnet_uri) {
        lt::add_torrent_params params = lt::parse_magnet_uri(magnet_uri);
        params.save_path = storage_dir_;
        session_.add_torrent(std::move(params));
    }

alert polling code:

std::vector<std::string> ClientSession::get_alerts() {
        std::vector<lt::alert*> alerts;
        session_.pop_alerts(&alerts);
        std::vector<std::string> ret;
        for (auto alert : alerts) {
            ret.push_back("Alert: " + std::string(alert->what()) + " " + alert->message());
        }
        return ret;
    }

Hopefully this makes sense. Anyhow, I can't seem to initiate a download, and I consistently get the lsd_error Local Service Discovery startup error [::1]: Can't assign requested address error.

I've tried using settings.set_str(lt::settings_pack::listen_interfaces, ...) with multiple IPs and ports, including 127.0.0.1:6881. I've also tried turning on and off my VPN, deleting buildfiles, etc. I'm kind of at a loss and would appreciate some advice. Maybe I'm missing something obvious.

[arvidn]

Anyhow, I can't seem to initiate a download

The call to add_torrent() initiates the download. What is not working as you would expect? There are a number of steps that need to work before you end up with files on disk. There's an (incomplete) trouble shooting guide here: http://libtorrent.org/troubleshooting.html

and I consistently get the lsd_error Local Service Discovery startup error [::1]: Can't assign requested address error.

That's not a fatal error, that just means local service discovery won't work over IPv6.

I've tried using settings.set_str(lt::settings_pack::listen_interfaces, ...) with multiple IPs and ports, including 127.0.0.1:6881. I've also tried turning on and off my VPN, deleting buildfiles, etc.

setting listen_interfaces is an easy way to break downloading. If you do, you should make sure you pay attention to listen_failed_alert and listen_succeeded_alert. If you're using a VPN, you probably want to set it to the VPN address or device name (+ port).

[stale[bot]]

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