i set the key in the map but unique key error still exist

<MenuList width={'148px'} >
        { Object.entries(userRoleMenu[UserRole]).map((item, index) => <>
          {item[0]==='fpv?
          <MenuItem _hover={{backgroundColor:'gray.50'}} key={item[0]} onClick={handleMenuClick(item)}>
          </MenuItem>
          :
          <MenuItem _hover={{backgroundColor:'gray.50'}} key={item[0]} onClick={handleMenuClick(item)}>{item[0]}</MenuItem>
          }
          </>)
        }
      </MenuList>

error:
UserProfileThumbnailMenuList.tsx:65 Warning: Each child in a list should have a unique "key" prop.

Check the render method of UserProfileThumbnailMenuList. See https://reactjs.org/link/warning-keys for more information.
at UserProfileThumbnailMenuList

code is in UserProfileThumbnailMenuList

i dont know why unique key error still exist

>Solution :

 <MenuList width={'148px'}>
  {Object.entries(userRoleMenu[UserRole]).map((item, index) => (
    <React.Fragment key={item[0]}>
      {item[0] === 'fpv' ? (
        <MenuItem _hover={{ backgroundColor: 'gray.50' }} onClick={() => handleMenuClick(item)}>
          {/* Add content for the fpv case here */}
        </MenuItem>
      ) : (
        <MenuItem _hover={{ backgroundColor: 'gray.50' }} onClick={() => handleMenuClick(item)}>
          {item[0]}
        </MenuItem>
      )}
    </React.Fragment>
  ))}
</MenuList>

I’ve added the correct key prop to the React.Fragment, and I’ve also fixed the syntax error in the conditional check by changing {item[0]===’fpv? to {item[0]===’fpv’ ?. Make sure to replace the placeholder comment with the actual content for the fpv case inside the MenuItem.