DioxusLabs/dioxus · error · syn::Error

Unrecognized attribute, expected #[server(...)]

Error message

Unrecognized attribute, expected #[server(...)]

What it means

Error "Unrecognized attribute, expected #[server(...)]" thrown in DioxusLabs/dioxus.

Source

Thrown at packages/fullstack-macro/src/lib.rs:1896

                            "Unrecognized #[server] attribute, expected \
                             #[server(default)] or #[server(rename = \
                             \"fieldName\")]",
                        )),
                    }
                } else if attr.path().is_ident("doc") {
                    // Allow #[doc = "documentation"]
                    Ok(attr.clone())
                } else if attr.path().is_ident("allow") {
                    // Allow #[allow(...)]
                    Ok(attr.clone())
                } else if attr.path().is_ident("deny") {
                    // Allow #[deny(...)]
                    Ok(attr.clone())
                } else if attr.path().is_ident("ignore") {
                    // Allow #[ignore]
                    Ok(attr.clone())
                } else {
                    Err(Error::new(
                        attr.span(),
                        "Unrecognized attribute, expected #[server(...)]",
                    ))
                }
            })
            .collect::<Result<Vec<_>>>()?;
        arg.attrs = vec![];
        Ok(ServerFnArg {
            arg,
            server_fn_attributes,
        })
    }
}

fn type_from_ident(ident: Ident) -> Type {
    let mut segments = Punctuated::new();
    segments.push(PathSegment {
        ident,

View on GitHub (pinned to 393d190a80)

When it happens

Trigger: Thrown at packages/fullstack-macro/src/lib.rs:1896 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of DioxusLabs/dioxus@393d190a80 (2026-08-16). Data as JSON: /api/errors/a2c9a00497378fe9. Report an issue: GitHub.