rustler errors on OTP26

[CharlesOkwuagwu]

Please I get this error on OTP26 with rustler 0.28
It's not clear how to apply the upgrade from here
https://github.com/rusterlium/rustler/blob/master/UPGRADE.md#028---029

error: failed to run custom build command for `rustler_sys v2.2.0`

Caused by:
  process didn't exit successfully: `c:/Projects/xler/_build/dev/lib/xler/native/xler_native\release\build\rustler_sys-55353dc99dae555c\build-script-build` (exit code: 101)
  --- stderr
  thread 'main' panicked at 'The NIF version given from RUSTLER_NIF_VERSION is not supported: 2.17', C:\Users\Charles Okwuagwu\.cargo\registry\src\index.crates.io-6f17d22bba15001f\rustler_sys-2.2.0\build.rs:925:9
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...

== Compilation error in file lib/xler/native.ex ==
** (RuntimeError) Rust NIF compile error (rustc exit code 101)
    (rustler 0.28.0) lib/rustler/compiler.ex:41: Rustler.Compiler.compile_crate/2
    lib/xler/native.ex:2: (module)

[filmor]

For now, there is nothing to do. Just update to 0.29. This problem (having to update for a new NIF version) is gone with 0.29 as well. You'll only have to update if you are actually using new NIF features.