Common Error Messages

"Custom element doesn't exist: room-summary-card"

• Cause: Card not properly loaded
• Fix: Check resource configuration and file location

"Area 'xyz' not found"

• Cause: Area doesn't exist or name mismatch
• Fix: Verify area exists and spelling is correct

"Entity 'abc.xyz' not found"

• Cause: Entity doesn't exist or is unavailable
• Fix: Check entity exists and is available

"Cannot read property 'state' of undefined"

• Cause: Entity state is missing or malformed
• Fix: Check entity has valid state and attributes

"Failed to load resource: /local/images/..."

• Cause: Background image file not found or inaccessible
• Fix: Verify image path and file exists in www folder

"Cannot read property 'entity_picture' of undefined"

• Cause: Image entity doesn't have entity_picture attribute
• Fix: Check entity has valid entity_picture or use different entity

"TypeError: Cannot read property 'includes' of undefined"

• Cause: Array/list property is undefined
• Fix: Check configuration arrays are properly formatted