ErrLookup › leptos-rs/leptos

leptos-rs/leptos

Build fast web applications with Rust. · Rust · 386 source files

Analyzed at 32d20f6c9d on 2026-09-01. 106 documented errors.

Code / Message	Type	Severity	Tags
Executor::spawn called, but no global 'spawn' function is co	panic	critical	wasm, async, executor, spawner, panic
Executor::spawn_local called, but no global 'spawn_local' fu	panic	critical	wasm, async, executor, spawn-local, panic
At {caller}, tried to spawn a Future with Executor::spawn()	panic	critical	async, executor, debug, panic, initialization
At {caller}, tried to spawn a Future with Executor::spawn_lo	panic	critical	async, executor, spawn-local, debug, panic
TEMPLATE FAILURE	panic	error	const-eval, compile-time, utf-8, template
called `unwrap_{variant}()` on a non-`{variant}` variant of	panic	error	enum, unwrap, panic, view
Failed to find the route {path} requested by the user. This	panic	error	routing, axum, ssr, server, panic
Static routes are not currently supported on WASM32 server t	panic	error	wasm32, ssr, static-routes, axum, feature-flags
Unsupported server function HTTP method: {method:?}	panic	critical	rust, axum, server-functions, routing, panic
{}	panic	error	rust, config, env, panic, parsing
Reading from a LocalResource outside Suspense in `ssr` mode	panic	error	rust, ssr, local-resource, suspense, panic
at {location}, the `sandboxed-arenas` feature is active, but	panic	error	rust, reactive-graph, arena, feature-flag, panic
{location:?} expected context of type {type_name:?} to be pr	panic	error	leptos, reactive-graph, context, provider-missing, panic
Tried to access a reactive value that has already been dispo	panic	critical	leptos, reactive-graph, disposed-signal, use-after-dispose, panic
could not find key for index {index:?} at {caller}	panic	error	leptos, reactive-stores, store-key, internal-state, panic
<FlatRoutes> should not be used with nested routes.	panic	error	leptos, leptos-router, flat-routes, nested-routes, panic
lazy routes should not be used with hydrate_body(); use hydr	panic	error	leptos, leptos-router, hydration, lazy-routes, code-splitting
At {caller}, you call `to_server_error()` or use `server_fn_	panic	error	leptos, server-fn, server-fn-error, trait-bounds, panic
InertElement does not support adding attributes. It should o	panic	error	ssr, html-rendering, static-elements
Unrecoverable hydration error. Please read the error message	panic	critical	hydration, ssr, dom-mismatch
You cannot use Suspend on an attribute outside Suspense	panic	error	ssr, suspense, async-attribute
You cannot use Suspend on an attribute outside Suspense	panic	error	ssr, suspense, async-attribute
InertElement does not support adding attributes. It should o	panic	error	ssr, svg, static-elements
You are rendering AnyView to HTML without the `ssr` feature	panic	error	ssr, feature-flags, anyview
internal error: entered unreachable code	panic	error	panic, unreachable, server-fn, wasm, response-construction
internal error: entered unreachable code	panic	error	panic, reactivity, inner-html, leptos, tachys
internal error: entered unreachable code	panic	error	panic, reactivity, async-hydration, suspense, leptos
internal error: entered unreachable code	panic	error	panic, reactivity, property-binding, leptos, tachys
internal error: entered unreachable code	panic	error	panic, reactivity, style-binding, leptos, tachys
keyword argument repeated: `encoding`	validation	error	rust, proc-macro, compile-time, server-fn
keyword argument repeated: `endpoint`	validation	error	rust, proc-macro, compile-time, server-fn
`encoding` and `input` should not both be specified	validation	error	rust, proc-macro, compile-time, server-fn, mutually-exclusive-args
keyword argument repeated: `input`	validation	error	rust, proc-macro, compile-time, server-fn
`encoding` and `output` should not both be specified	validation	error	rust, proc-macro, compile-time, server-fn, mutually-exclusive-args
keyword argument repeated: `output`	validation	error	rust, proc-macro, compile-time, server-fn
keyword argument repeated: `server`	validation	error	rust, proc-macro, compile-time, server-fn
keyword argument repeated: `client`	validation	error	rust, proc-macro, compile-time, server-fn
keyword argument repeated: `custom`	validation	error	rust, proc-macro, compile-time, server-fn
keyword argument repeated: `impl_from`	validation	error	rust, proc-macro, compile-time, server-fn
keyword argument repeated: `impl_deref`	validation	error	rust, proc-macro, parse-error, duplicate-argument
keyword argument repeated: `protocol`	validation	error	rust, proc-macro, parse-error, duplicate-argument
positional argument follows keyword argument	validation	error	rust, proc-macro, parse-error, duplicate-argument
expected string literal	validation	error	rust, proc-macro, parse-error, positional-argument
If you use keyword arguments (e.g., `name` = Something), the	validation	error	rust, proc-macro, parse-error, argument-style-mixing
unexpected extra argument	validation	error	rust, proc-macro, parse-error, too-many-arguments
Encoding not found.	validation	error	rust, proc-macro, encoding, invalid-value
cannot use receiver types in server function macro	validation	error	rust, proc-macro, receiver, unsupported-target
Unrecognized #[server] attribute, expected #[server(default)	validation	error	rust, proc-macro, attribute, field-attribute
Unrecognized attribute, expected #[server(...)]	validation	error	rust, proc-macro, attribute, unsupported-attribute
could not create futures executor ThreadPool	panic	critical	rust, thread-pool, executor-init, resource-exhaustion
failed to spawn future on ThreadPool	panic	critical	rust, thread-pool, spawn-failure, panic
failed to spawn local future	panic	error	rust, local-pool, spawn-local, panic
Expected a [number, string] tuple	panic	error	rust, wasm, hydration, serialization, ssr
Failed to create HeaderValue	panic	error	rust, actix, http-headers, redirect, panic
failed to read hash file	panic	critical	leptos, hydration, filesystem, panics
could not read manifest file	panic	error	leptos, hydration, json, serde
body to exist	panic	error	leptos, dom, portal, ssr
SVG element creation to work	panic	error	leptos, dom, svg, portal
HTML element creation to work	panic	error	leptos, dom, portal
no current reactive Owner found	panic	error	leptos, reactive-owner, context, panics
no shared context	panic	error	leptos, ssr, suspense, reactive-owner
children should not be removed until we render here	panic	error	leptos, ssr, suspense, lifecycle
couldn't serialize island props	panic	error	islands, serialization, serde, macro, panic
could not deserialize props	panic	error	hydration, islands, serde, deserialization, panic
expected named struct fields	panic	error	macro, server-functions, compile-time, derive
List of slots must not be empty	panic	error	view-macro, slots, compile-time, macro, panic
element needs to have a name	panic	error	leptos, proc-macro, compile-time, view-macro
List of slots must not be empty	panic	error	leptos, proc-macro, slots, compile-time
there to be a <body> element	panic	error	leptos, wasm, dom, browser
there to be a <html> element	panic	error	leptos, wasm, dom, hydration
missing <head> element	panic	error	leptos, meta, dom, hydration
you are using leptos_meta without a </head> tag	panic	error	leptos, ssr, meta, html-template
failed to read hash file	panic	error	rust, filesystem, leptos, assets, ssr
should serialize string	panic	info	rust, serde, tests, oco
should deserialize from string	panic	info	rust, serde, tests, oco
lock poisoned	panic	error	rust, concurrency, rwlock, poisoning, leptos
async route used in SSR	panic	critical	ssr, async-route, router, leptos
Tried to access Location outside a <Router>.	panic	error	react-hooks, router-context, leptos
called use_resolved_path outside a <Router>	panic	error	react-hooks, router-context, leptos
You cannot call `use_navigate` outside a <Router>.	panic	error	react-hooks, router-context, navigation, leptos
use_matched called outside a matched Route	panic	error	react-hooks, router-context, leptos
no `finished` property on ViewTransition	panic	error	browser-api, view-transitions, wasm, leptos
tried to use <A/> outside a <Router/>.	panic	error	router-context, component, leptos
async routes not supported in SSR	panic	critical	ssr, async-route, router, leptos
<Outlet/> used without RouteContext being provided.	panic	error	router-context, outlet, leptos
couldn't parse boundary	panic	error	http, multipart, panic
Valid text format type with utf-8 comptabile string	panic	error	encoding, utf8, panic
lock poisoned	panic	error	reactive, mutex, panic
no reactive owner	panic	error	reactive, owner, ssr, panic
queueMicrotask not available	panic	error	wasm, browser, polyfill, panic
could not find parent element	panic	error	dom, mounting, panic
placeholder parent should be Element	panic	error	dom, mounting, panic
event.target not found	panic	error	dom, events, panic
incorrect element type	panic	error	dom, events, type-cast, panic
anchor is not a child of the parent	panic	error	mock-dom, testing, panic
tried to remove a parentless node	panic	error	dom, mock-dom, panic, renderer, detached-node
rendering B to HTML without filling it	panic	error	ssr, html-rendering, either-view, panic, tachys
rendering A to HTML without filling it	panic	error	ssr, html-rendering, either-view, panic, tachys
B was not present	panic	error	client-side, unmount, either-view, panic, lifecycle
A was not present	panic	error	client-side, unmount, either-view, panic, lifecycle
InsertChildAfter could not build children.	console	warning	hot-reload, dom-patching, leptos
[HOT RELOADING] Unmatched action	console	warning	hot-reload, version-mismatch, leptos
[HOT RELOADING] Error:	console	warning	hot-reload, javascript, uncaught-exception
[HOT RELOADING] Could not find replacement node at	console	warning	hot-reload, dom-patching, leptos
[HOT RELOADING] Building children, encountered	console	info	hot-reload, dom-walker, leptos
[HOT RELOADING] Child at	console	warning	hot-reload, dom-patching, path-resolution