examples/beep.rs fails to compile

[SephReed]

These are my errors:

error[E0412]: cannot find type `StreamConfig` in crate `cpal`
  --> src/main.rs:22:49
   |
22 | fn run<T>(device: &cpal::Device, config: &cpal::StreamConfig) -> Result<(), anyhow::Error>
   |                                                 ^^^^^^^^^^^^ not found in `cpal`

error[E0599]: no method named `default_output_config` found for type `cpal::Device` in the current scope
  --> src/main.rs:11:25
   |
11 |     let config = device.default_output_config()?;
   |                         ^^^^^^^^^^^^^^^^^^^^^ method not found in `cpal::Device`

error[E0599]: no method named `build_output_stream` found for type `&cpal::Device` in the current scope
  --> src/main.rs:38:25
   |
38 |     let stream = device.build_output_stream(
   |                         ^^^^^^^^^^^^^^^^^^^ method not found in `&cpal::Device`

error: aborting due to 3 previous errors

This is the example:
https://github.com/RustAudio/cpal/blob/master/examples/beep.rs

---

I really new to Rust, so I'm unable to figure out what syntax changes have occured.

[SephReed]

This function does appear to exist

cpal/src/host/coreaudio/mod.rs

Line 102 in aac04e7

fn default_output_config(&self) -> Result<SupportedStreamConfig, DefaultStreamConfigError> {

[est31]

That function was introduced by #371 which hasn't been in a crates.io release yet, only on master. I think you are using cpal from crates.io, while having copied the example code from git.

You can either get cpal from git (see this link), or use the example code from the 0.11.0 release.

[SephReed]

Thank you! You're the best!

[KillyMXI]

This got me confused too.

Tags for public releases would've allowed for somewhat easier access to correct examples after breaking changes.

[gordonhart]

+1 to @KillyMXI's suggestion for tags on public releases. I'm willing to help out with the CI setup or manual retroactive tagging if needed!