DioxusLabs/dioxus · error

Unable to retrieve the hook that was initialized at this ind

Error message

Unable to retrieve the hook that was initialized at this index.
                    Consult the `rules of hooks` to understand how to use hooks properly.

                    You likely used the hook in a conditional. Hooks rely on consistent ordering between renders.
                    Functions prefixed with "use" should never be called conditionally.

                    Help: Run `dx check` to look for check for some common hook errors.

What it means

Error "Unable to retrieve the hook that was initialized at this index. Consult the `rules of hooks` to understand how to use hooks properly. You likely used the hook in a conditional. Hooks rely on consistent ordering between renders. Functions prefixed with "use" should never be called conditionally. Help: Run `dx check` to look for check for some common hook errors." thrown in DioxusLabs/dioxus.

Source

Thrown at packages/core/src/scope_context.rs:426

        &self,
        hooks: &mut Vec<Box<dyn std::any::Any>>,
        cur_hook: usize,
        value: State,
    ) -> State {
        // If this is a new hook, push it
        if cur_hook >= hooks.len() {
            hooks.push(Box::new(value.clone()));
            return value;
        }

        // If we're in dev mode, we allow swapping hook values if the hook was initialized at this index
        if cfg!(debug_assertions) && unsafe { subsecond::get_jump_table().is_some() } {
            hooks[cur_hook] = Box::new(value.clone());
            return value;
        }

        // Otherwise, panic
        panic!(
            r#"Unable to retrieve the hook that was initialized at this index.
                    Consult the `rules of hooks` to understand how to use hooks properly.

                    You likely used the hook in a conditional. Hooks rely on consistent ordering between renders.
                    Functions prefixed with "use" should never be called conditionally.

                    Help: Run `dx check` to look for check for some common hook errors."#
        );
    }

    pub(crate) fn push_before_render(&self, f: impl FnMut() + 'static) {
        self.before_render.borrow_mut().push(Box::new(f));
    }

    pub(crate) fn push_after_render(&self, f: impl FnMut() + 'static) {
        self.after_render.borrow_mut().push(Box::new(f));
    }

View on GitHub (pinned to 24f6a829df)

Solutions

1. A hook was called conditionally or in a different order between renders. Call hooks unconditionally at the top of the component; run dx check to find violations.

When it happens

Trigger: Thrown at packages/core/src/scope_context.rs:426 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of DioxusLabs/dioxus@24f6a829df (2026-08-23). Data as JSON: /api/errors/feb832552b5b6582. Report an issue: GitHub.