| CUI0001 |
reactive |
A signal/memo/store was used after its scope was disposed. |
Use try_get/try_set for values that can outlive their component, or keep the handle inside its component. |
| CUI0101 |
semantics |
A query matched no node. The message lists similar nodes. |
Fix the role/name, or wait for the element to appear (advance_ms). |
| CUI0102 |
semantics |
A query matched several nodes. |
Narrow the query (role(..).name(..)), or add a .label(..). |
| CUI0103 |
view |
An action named an unknown semantic id. |
Re-read the tree (ids are stable, but the node may have unmounted). |
| CUI0104 |
view |
The node does not support the action. |
Check the node's actions in the tree. |
| CUI0105 |
view |
Agents may not type into secure fields. |
— (by design). |
| CUI0106 |
view |
The node is disabled. |
Enable it first. |
| CUI0201 |
view |
A layout property was used in a style variant (hover, dark …); it is ignored. |
Variants take paint/composite properties only. |
| CUI0202 |
view |
A bound or non-style modifier was used in a variant; it is ignored. |
Use literal values in variants. |
| CUI0301 |
view |
A component panicked inside an error_boundary; the fallback is shown. |
See the logged message and component path. |
| CUI0401 |
runtime |
An image upload was rejected (wrong byte length). |
Pass width × height × 4 straight-alpha RGBA bytes. |
| CUI0402 |
runtime |
The renderer could not be created. |
Check GPU/driver; try CROWNUI_RENDERER=gles. |
| CUI0403 |
runtime |
The window surface was lost. |
The compositor closed the connection. |
| CUI0404 |
runtime |
A frame failed to render. |
See the backend error. |
| CUI0405 |
runtime |
The render thread stopped. |
See the preceding CUI040x error. |
| CUI0406 |
runtime |
The created window has no surface. |
Platform bug. |
| CUI0407 |
runtime |
The async task executor could not start. |
cx.spawn returns None. |
| CUI0408 |
runtime |
The MCP server could not start. |
Check $XDG_RUNTIME_DIR/crownui permissions. |
| CUI0501 |
widgets |
The SVG source could not be parsed; nothing is drawn. |
Validate the SVG. |
| CUI0601 |
crownconfig |
A config section could not be written. |
Check the permissions of $CROWN_CONFIG_DIR (default ~/.config/crownos). |