cargo leptos watch not compiling from axum/actix templates

[matthewharwood]

Doing tutorial on https://book.leptos.dev/ssr/21_cargo_leptos.html

Tried both actix and axum templates both give same error:

$ sw_vers
     ProductName:		macOS
     ProductVersion:		15.1

$ system_profiler SPHardwareDataType
Hardware:
      Model Name: MacBook Pro
      Chip: Apple M2 Max

$harwood  % rustc --version
       rustc 1.84.0-nightly (fbab78289 2024-11-04)

$ harwood  % cargo install cargo-leptos
    Updating crates.io index
    Ignored package `cargo-leptos v0.2.21` is already installed, use --force to override

$ harwood signup-ssr-axum % cargo leptos new --git leptos-rs/start-axum
     (nightly)

$ harwood signup-ssr-axum % rustup target add wasm32-unknown-unknown
     info: component 'rust-std' for target 'wasm32-unknown-unknown' is up to date

$ harwood signup-ssr-axum % cargo leptos watch
   Compiling proc-macro2 v1.0.89
   Compiling unicode-ident v1.0.13
   Compiling serde v1.0.214
   ....

Error: at `/Users/harwood/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cargo-leptos-0.2.21/src/compile/front.rs:51:30`

Caused by:
    0: at `/Users/harwood/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cargo-leptos-0.2.21/src/compile/front.rs:126:10`
    1:

       it looks like the Rust project used to create this Wasm file was linked against
       version of wasm-bindgen that uses a different bindgen format than this binary:

         rust Wasm file schema version: 0.2.93
            this binary schema version: 0.2.95

       Currently the bindgen format is unstable enough that these two schema versions
       must exactly match. You can accomplish this by either updating this binary or
       the wasm-bindgen dependency in the Rust project.

       You should be able to update the wasm-bindgen dependency with:

           cargo update -p wasm-bindgen --precise 0.2.95

       don't forget to recompile your Wasm file! Alternatively, you can update the
       binary with:

           cargo install -f wasm-bindgen-cli --version 0.2.93

       if this warning fails to go away though and you're not sure what to do feel free
       to open an issue at https://github.com/rustwasm/wasm-bindgen/issues!

[gtsiam]

rust Wasm file schema version: 0.2.93

This means that the version of cargo-leptos you have installed has bundled wasm-bindgen 0.2.93

this binary schema version: 0.2.95

And this is the version of wasm-bindgen you have as a dependency in your application and is used to build the wasm binary file.

Solution: Update cargo-leptos (cargo install --force cargo-leptos should do it).