Can't compile svm example

[wormtql]

I'm executing exactly the same code as the winequality_svm example, with my Cargo.toml as close as possible to the example Cargo.toml

[package]
name = "svm_example"
version = "0.1.0"
edition = "2021"

[dependencies]
linfa-svm = "0.7.0"
linfa = "0.7.0"
linfa-datasets = { version = "0.7.0", features = ["winequality", "diabetes"] }
ndarray = "0.15"
num-traits = "0.2"
linfa-kernel = "0.7.0"

My rust toolchain is nightly 1.83.0
And got the compiler error:

error[E0277]: cannot multiply `&CsMatBase<F, usize, Vec<usize>, Vec<usize>, Vec<F>>` by `&ndarray::ArrayBase<ViewRepr<&F>, Dim<[usize; 2]>>`
  --> C:\Users\admin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\linfa-kernel-0.7.0\src\inner.rs:64:18
   |
64 |         self.mul(rhs)
   |              --- ^^^ no implementation for `&CsMatBase<F, usize, Vec<usize>, Vec<usize>, Vec<F>> * &ndarray::ArrayBase<ViewRepr<&F>, Dim<[usize; 2]>>`
   |              |
   |              required by a bound introduced by this call
   |
   = help: the trait `Mul<&ndarray::ArrayBase<ViewRepr<&F>, Dim<[usize; 2]>>>` is not implemented for `&CsMatBase<F, usize, Vec<usize>, Vec<usize>, Vec<F>>`
   = help: the following other types implement trait `Mul<Rhs>`:
             `&CsMatBase<N, I, IpS, IS, DS, Iptr>` implements `Mul<&ndarray::ArrayBase<DS2, ndarray::dimension::dim::Dim<[usize; 1]>>>`
             `&CsMatBase<N, I, IpS, IS, DS, Iptr>` implements `Mul<&ndarray::ArrayBase<DS2, ndarray::dimension::dim::Dim<[usize; 2]>>>`
             `&CsMatBase<N, I, IpS1, IS1, DS1, Iptr>` implements `Mul<&CsMatBase<N, I, IpS2, IS2, DS2, Iptr>>`
             `&CsMatBase<N, I, IpS1, IS1, DS1, Iptr>` implements `Mul<&CsVecBase<IS2, DS2, N, I>>`
             `&CsMatBase<f32, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<f32>`
             `&CsMatBase<f64, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<f64>`
             `&CsMatBase<i16, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<i16>`
             `&CsMatBase<i32, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<i32>`
           and 8 others

error[E0277]: cannot multiply `&CsMatBase<F, usize, &[usize], &[usize], &[F]>` by `&ndarray::ArrayBase<ViewRepr<&F>, Dim<[usize; 2]>>`
   --> C:\Users\admin\.cargo\registry\src\index.crates.io-6f17d22bba15001f\linfa-kernel-0.7.0\src\inner.rs:109:18
    |
109 |         self.mul(rhs)
    |              --- ^^^ no implementation for `&CsMatBase<F, usize, &[usize], &[usize], &[F]> * &ndarray::ArrayBase<ViewRepr<&F>, Dim<[usize; 2]>>`
    |              |
    |              required by a bound introduced by this call
    |
    = help: the trait `Mul<&ndarray::ArrayBase<ViewRepr<&F>, Dim<[usize; 2]>>>` is not implemented for `&CsMatBase<F, usize, &[usize], &[usize], &[F]>`
    = help: the following other types implement trait `Mul<Rhs>`:
              `&CsMatBase<N, I, IpS, IS, DS, Iptr>` implements `Mul<&ndarray::ArrayBase<DS2, ndarray::dimension::dim::Dim<[usize; 1]>>>`
              `&CsMatBase<N, I, IpS, IS, DS, Iptr>` implements `Mul<&ndarray::ArrayBase<DS2, ndarray::dimension::dim::Dim<[usize; 2]>>>`
              `&CsMatBase<N, I, IpS1, IS1, DS1, Iptr>` implements `Mul<&CsMatBase<N, I, IpS2, IS2, DS2, Iptr>>`
              `&CsMatBase<N, I, IpS1, IS1, DS1, Iptr>` implements `Mul<&CsVecBase<IS2, DS2, N, I>>`
              `&CsMatBase<f32, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<f32>`
              `&CsMatBase<f64, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<f64>`
              `&CsMatBase<i16, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<i16>`
              `&CsMatBase<i32, I, IpStorage, IStorage, DStorage, Iptr>` implements `Mul<i32>`
            and 8 others

For more information about this error, try `rustc --explain E0277`.
error: could not compile `linfa-kernel` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...

[Sean-WangXin]

same error for me with rustc 1.80.0 (051478957 2024-07-21)

[ronniec95]

I fixed this by cloning the repo and changing all the references for ndarry to 0.16 but it's not universal

[relf]

Could you try with linfa 0.7.1 ?