cargo leptos watch fails

[acgetchell]

Describe the Bug

Trying to start up Leptos fails

Steps to Reproduce

1. cargo install cargo-leptos
2. cargo leptos new --git leptos-rs/start-axum
3. rustup target add wasm32-unknown-unknown
4. cargo Leptos watch
5. See error

If applicable, add a link to a test case (as a zip file or link to a repository we can clone).

Expected Behavior

Runs

Actual Behavior

 ~/projects/spock (main?) $ cargo leptos watch
   Compiling proc-macro2 v1.0.87
   Compiling unicode-ident v1.0.13
   Compiling serde v1.0.210
   Compiling once_cell v1.20.2
   Compiling autocfg v1.4.0
   Compiling version_check v0.9.5
   Compiling cfg-if v1.0.0
   Compiling wasm-bindgen-shared v0.2.93
   Compiling log v0.4.22
   Compiling bumpalo v3.16.0
   Compiling memchr v2.7.4
   Compiling thiserror v1.0.64
   Compiling wasm-bindgen v0.2.93
   Compiling smallvec v1.13.2
   Compiling parking_lot_core v0.9.10
   Compiling futures-core v0.3.31
   Compiling futures-sink v0.3.31
   Compiling futures-channel v0.3.31
   Compiling unicode-xid v0.2.6
   Compiling lock_api v0.4.12
   Compiling slab v0.4.9
   Compiling libc v0.2.159
   Compiling pin-project-lite v0.2.14
   Compiling proc-macro-error-attr v1.0.4
   Compiling equivalent v1.0.1
   Compiling serde_json v1.0.128
   Compiling futures-io v0.3.31
   Compiling hashbrown v0.15.0
   Compiling itoa v1.0.11
   Compiling pin-utils v0.1.0
   Compiling futures-task v0.3.31
   Compiling proc-macro-error v1.0.4
   Compiling ryu v1.0.18
   Compiling tinyvec_macros v0.1.1
   Compiling indexmap v2.6.0
   Compiling unicode-segmentation v1.12.0
   Compiling percent-encoding v2.3.1
   Compiling tinyvec v1.8.0
   Compiling convert_case v0.6.0
   Compiling proc-macro2-diagnostics v0.10.1
   Compiling quote v1.0.37
   Compiling syn v2.0.79
   Compiling proc-macro-utils v0.8.0
   Compiling proc-macro-utils v0.10.0
   Compiling xxhash-rust v0.8.12
   Compiling unicode-normalization v0.1.24
   Compiling const_format_proc_macros v0.2.33
   Compiling manyhow-macros v0.10.4
   Compiling slotmap v1.0.7
   Compiling half v2.4.1
   Compiling fnv v1.0.7
   Compiling scopeguard v1.2.0
   Compiling ciborium-io v0.2.2
   Compiling anyhow v1.0.89
   Compiling camino v1.1.9
   Compiling paste v1.0.15
   Compiling const_format v0.2.33
   Compiling yansi v1.0.1
   Compiling unicode-bidi v0.3.17
   Compiling bytes v1.7.2
   Compiling idna v0.5.0
   Compiling ciborium-ll v0.2.2
   Compiling http v1.1.0
   Compiling form_urlencoded v1.2.1
   Compiling tracing-core v0.1.32
   Compiling prettyplease v0.2.22
   Compiling interpolator v0.5.0
   Compiling same-file v1.0.6
   Compiling collection_literals v1.0.1
   Compiling winnow v0.6.20
   Compiling hashbrown v0.14.5
   Compiling walkdir v2.5.0
   Compiling url v2.5.2
   Compiling parking_lot v0.12.3
   Compiling wasm-bindgen-backend v0.2.93
   Compiling server_fn_macro v0.6.15
   Compiling manyhow v0.10.4
   Compiling dashmap v5.5.3
   Compiling getrandom v0.2.15
   Compiling proc-macro-error-attr2 v2.0.0
   Compiling aho-corasick v1.1.3
   Compiling wasm-bindgen-macro-support v0.2.93
   Compiling send_wrapper v0.6.0
   Compiling rustc-hash v1.1.0
   Compiling lazy_static v1.5.0
   Compiling regex-syntax v0.8.5
   Compiling either v1.13.0
   Compiling utf8-width v0.1.7
   Compiling minimal-lexical v0.2.1
   Compiling self_cell v1.0.4
   Compiling base64 v0.22.1
   Compiling itertools v0.12.1
   Compiling nom v7.1.3
   Compiling html-escape v0.2.13
   Compiling proc-macro-error2 v2.0.1
   Compiling uuid v1.10.0
   Compiling pathdiff v0.2.1
   Compiling pad-adapter v0.1.1
   Compiling drain_filter_polyfill v0.1.3
   Compiling inventory v0.3.15
   Compiling serde_derive v1.0.210
   Compiling thiserror-impl v1.0.64
   Compiling wasm-bindgen-macro v0.2.93
   Compiling futures-macro v0.3.31
   Compiling tracing-attributes v0.1.27
   Compiling pin-project-internal v1.1.6
   Compiling quote-use-macros v0.8.4
   Compiling syn_derive v0.1.8
   Compiling server_fn_macro_default v0.6.15
   Compiling futures-util v0.3.31
   Compiling quote-use v0.8.4
   Compiling derive-where v1.2.7
   Compiling regex-automata v0.4.8
   Compiling attribute-derive-macro v0.9.2
   Compiling typed-builder-macro v0.18.2
   Compiling js-sys v0.3.70
   Compiling pin-project v1.1.6
   Compiling rstml v0.11.2
   Compiling tracing v0.1.40
   Compiling async-recursion v1.1.1
   Compiling console_error_panic_hook v0.1.7
   Compiling attribute-derive v0.9.2
   Compiling typed-builder v0.18.2
   Compiling futures-executor v0.3.31
   Compiling futures v0.3.31
   Compiling regex v1.11.0
   Compiling web-sys v0.3.70
   Compiling wasm-bindgen-futures v0.4.43
   Compiling toml_datetime v0.6.8
   Compiling serde_spanned v0.6.8
   Compiling serde_qs v0.12.0
   Compiling oco_ref v0.1.1
   Compiling ciborium v0.2.2
   Compiling serde-wasm-bindgen v0.6.5
   Compiling toml_edit v0.22.22
   Compiling leptos_hot_reload v0.6.15
   Compiling serde_test v1.0.177
   Compiling serde_qs v0.13.0
   Compiling linear-map v1.2.0
   Compiling leptos_macro v0.6.15
   Compiling toml v0.8.19
   Compiling config v0.14.0
   Compiling leptos_config v0.6.15
   Compiling gloo-utils v0.2.0
   Compiling leptos_reactive v0.6.15
   Compiling gloo-net v0.6.0
   Compiling wasm-streams v0.4.1
   Compiling server_fn v0.6.15
   Compiling leptos_server v0.6.15
   Compiling leptos_dom v0.6.15
   Compiling leptos v0.6.15
   Compiling leptos_meta v0.6.15
   Compiling leptos_router v0.6.15
   Compiling spock v0.1.0 (/Users/adam/projects/spock)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.35s
       Cargo finished cargo build --package=spock --lib --target-dir=/Users/adam/projects/spock/target/front --target=wasm32-unknown-unknown --no-default-features --features=hydrate
       Front compiling WASM
Error: at `/Users/adam/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cargo-leptos-0.2.17/src/compile/front.rs:47:30`

Caused by:
    0: at `/Users/adam/.cargo/registry/src/index.crates.io-6f17d22bba15001f/cargo-leptos-0.2.17/src/compile/front.rs:122:10`
    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: 0.2.92

       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 0.2.92

       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!

Additional Context

 ~/projects/spock (main?) $ cargo update -p wasm-bindgen --precise 0.2.92
    Updating crates.io index
error: failed to select a version for the requirement `wasm-bindgen = "=0.2.93"`
candidate versions found which didn't match: 0.2.92
location searched: crates.io index
required by package `spock v0.1.0 (~/projects/spock)`

[daxpedda]

The problem seems to be that a package you depend on, spock, doesn't support downgrading to v0.2.92, presumably because it requires at least v0.2.93.

[acgetchell]

spock is the name of my project that was generated via cargo leptos new --git leptos-rs/start-axum

[daxpedda]

I'm not familiar with Leptos, but I assume you should check the generated Cargo.toml then.
You might be better served if you ask in the Leptos community.

[acgetchell]

Well, I updated to wasm-bindgen = "0.2.95" in Cargo.toml and then recompiled using cargo install -f wasm-bindgen-client--version 0.2.95, but I still get this error. How do you update wasm-bindgen?

[daxpedda]

I might be able to figure out if you share some reproducable example.
But again: you might be much better served asking the Leptos community directly.

[cplmayo]

Was this solved? I am running into the same issue and I haven't been able to find a resolution.

[CodingFlow]

Yes, I found the solution. Need to update cargo-leptos; my guess is that the error is because cargo-leptos is built against specific version of wasm-bindgen. Although I updated to wasm-bindgen 0.2.95. I also updated rust to latest using rustup update and updated all my leptos dependencies to the version in this PR.

cc: @acgetchell

[acgetchell]

No, I gave up and picked a different stack.

[gihrig]

For the cargo-leptos folks who stumble into this discussion the soulution lies in cargo-leptos, not your project code.

Installing the correct version of cargo-leptos eliminates the error.

As near as I can tell, the wasm-bindgen version in cargo-leptos cargo .toml needs to match your installed wasm-bingen-cli.

In my case updating cargo-leptos the most recent version, newer that the current release, fixed the error.

See cargo-leptos getting started for details.