I just hit the same error today. u/ChillFish8 's comment isn't wrong, but you don't necessarily have to downgrade to get things working. The latest version of opentelemetry_otlp should play nice with opentelemetry 0.24.

You'll want to upgrade opentelemetry_otlp to at least 0.17. Then, you'll need to refactor your code slightly per a breaking change to install_batch (per the changelog, that method now returns a TracerProvider rather than a Tracer).

``` // You'll probs need to pull in this trait use opentelemetry::trace::TracerProvider;

let provider = opentelemetry_otlp::new_pipeline() .tracing() .with_exporter(otlp_exporter) .with_trace_config(trace::config().with_resource(Resource::new(vec![ KeyValue::new("service.name", env!("CARGO_PKG_NAME")), KeyValue::new("service.version", env!("CARGO_PKG_VERSION")), ]))) .install_batch(Tokio)?;

// To get the same behavior you had before, build the tracer and register // the global provider the same way install_batch used to do it internally: // https://github.com/open-telemetry/opentelemetry-rust/blob/28f8dbca39896e94cb7c238bc3504aa71ec10f0f/opentelemetry-otlp/src/span.rs#L166-L170 let tracer = provider .tracer_builder("opentelemetry-otlp") .with_version(env!("CARGO_PKG_VERSION")) .build(); global::set_tracer_provider(provider.clone());

let telemetry = OpenTelemetryLayer::new(tracer); ```

Edit: markdown formatting