DioxusLabs/dioxus · error · syn::Error

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

Error message

Unrecognized #[server] attribute, expected #[server(default)] or #[server(rename = "fieldName")]

What it means

Error "Unrecognized #[server] attribute, expected #[server(default)] or #[server(rename = "fieldName")]" thrown in DioxusLabs/dioxus.

Source

Thrown at packages/fullstack-macro/src/lib.rs:1876

                    };

                    let args = attr.parse_args::<Meta>()?;
                    match args {
                        // #[server(default)]
                        Meta::Path(path) if path.is_ident("default") => Ok(attr.clone()),
                        // #[server(flatten)]
                        Meta::Path(path) if path.is_ident("flatten") => Ok(attr.clone()),
                        // #[server(default = "value")]
                        Meta::NameValue(name_value) if name_value.path.is_ident("default") => {
                            Ok(attr.clone())
                        }
                        // #[server(skip)]
                        Meta::Path(path) if path.is_ident("skip") => Ok(attr.clone()),
                        // #[server(rename = "value")]
                        Meta::NameValue(name_value) if name_value.path.is_ident("rename") => {
                            Ok(attr.clone())
                        }
                        _ => Err(Error::new(
                            attr.span(),
                            "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())

View on GitHub (pinned to 393d190a80)

When it happens

Trigger: Thrown at packages/fullstack-macro/src/lib.rs:1876 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/6320465fcec005ab. Report an issue: GitHub.