why room tag not work ?

[Anonymous]

[L.Maas]

You try to place a room together with a room tag. However as mentioned in the error message you do not have an enclosed area, so no room can be created. And without a room also the tag can not be placed

The enclosed area should be made of room bounding elements (e.g wall, doors, columns, separator lines). Normal lines do not count as room bounding elements

[Anonymous]

[L.Maas]

You still have the same error, so the issue remains. Possibly you have underlay of level 1, so you are looking at walls of level 1 while trying to place room on level 2. Or for some reason the area is not completely enclosed with room bounding elements. You would have to upload project so we can have a look

[Anonymous]

here 

[L.Maas]

As expected, no enclosed areas with room bounding elements.

Only elements that are room bouding are the columns, but they do not enlcose an area

If you would use walls to enclose an area than no problem with creating the room(s)

HERE more detailed information about room bounding elements

[Anonymous]

i made walls and window and not working

[ToanDN]

You need a closed boundary to create a Room. Two walls don't make it.

[ToanDN]

Edit: looked at you picture again and you have more than two walls, so my apology. But I think @L.Maas is right that the walls seem to be on the lower level and you may want to create rooms on the upper level.

You need a closed boundary to create a Room. Two walls don't make it.

[L.Maas]

Probably you are trying to create the room on the second level while your walls are on the first level

[Anonymous]

it worked when the top level of wall exceeded the level of slab,,, at first i thought it depends on floor , thank you so much 

[Anonymous]

Can i show  perimeter  of room or area only ?

[Sahay_R]

Yes. You can add a label with this information to your room tag.

Again for the room tag to work you need 

1) four walls

2) all walls must be 'room bounding'

3) or room separation lines

[Anonymous]

i mean in tag

[Sahay_R]

Yes. If you are in a tag family, you can Create>>Label, and then this dialog box comes up. If you pick Perimeter and hit the green arrow, the label will read the Perimeter.