piston-demo is broken

[aholtzma]

The piston demo builds, but panics immediately

aaron-mini:piston-demo aholtzma$ RUST_BACKTRACE=1 ./target/release/piston-demo
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Custom { kind: Other, error: StringError("Not supported") }', src/libcore/result.rs:999:5
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
   1: std::sys_common::backtrace::_print
   2: std::panicking::default_hook::{{closure}}
   3: std::panicking::default_hook
   4: std::panicking::rust_panic_with_hook
   5: std::panicking::continue_panic_fmt
   6: rust_begin_unwind
   7: core::panicking::panic_fmt
   8: core::result::unwrap_failed
   9: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T,I>>::from_iter
  10: piston_demo::main
  11: std::rt::lang_start::{{closure}}
  12: std::panicking::try::do_call
  13: __rust_maybe_catch_panic
  14: std::rt::lang_start_internal
  15: main

This is running on MacOS Mojave.

[38]

Thats' odd, would you please provide detailed stack trace by running the debug build ?

Thanks

[38]

It seems the dependency i am using for this which called systemstat is broken under MacOS now. I am not sure and I don't have a Mac on my hand. So if you could provide the stack trace with line numbers, it should be extremely helpful.

[bermeom]

Hi
I have this error

error[E0425]: cannot find function draw_piston_window in module plotters::drawing
--> src/main.rs:25:44
|
25 | while let Some(_) = plotters::drawing::draw_piston_window(&mut window, |b| {
|

[38]

Hi
I have this error

error[E0425]: cannot find function draw_piston_window in module plotters::drawing
--> src/main.rs:25:44
|
25 | while let Some(_) = plotters::drawing::draw_piston_window(&mut window, |b| {
|

Would you please provide more details about how you compile the code ?

[bermeom]

I have managed to run that example but using the following configuration in cargo.toml
plotters = {version="0.2.3",default_features = false, features = ["piston"]}
systemstat = "0.1.4"
piston_window = "0.96.0"
But using the last plotters version, the project does not work, i.e
plotters = {version="^0.2.8",default_features = false, features = ["piston"]}
systemstat = "0.1.4"
piston_window = "0.96.0"

[38]

Hi I tried your configure, what I see is this error

error[E0308]: mismatched types
  --> src/main.rs:21:44
   |
21 |     while let Some(_) = draw_piston_window(&mut window, |b| {
   |                                            ^^^^^^^^^^^ expected struct `piston_window::PistonWindow`, found a different struct `piston_window::PistonWindow`
   |
   = note: expected type `&mut piston_window::PistonWindow` (struct `piston_window::PistonWindow`)
              found type `&mut piston_window::PistonWindow` (struct `piston_window::PistonW

This is caused by version conflict of the piston window used by newer version of Plotters and your configuration.

If this is the issue, it seems change the version requirement of psition window to * could solve

pistion_window = "*"

[38]

Closed due to removal of piston backend