"No solids, surfaces, or regeions selected" on subtract

[Anonymous]

I am trying to subtract some 3D text from an object to make an indented text.  The text is positioned mostly inside the object.

 I use subtract command,

It asks to select objects to subtract from,

I select the object, It says 1 found

I hit enter,

The object immediately becomes unselected and it says "No solids, surfaces, or regions selected."

Is this a common issue?  am I doing something wrong?  Does anyone know how to fix this.

This is the second time doing this same action in the project, it worked fine last time.

If anyone has any ideas as to how to fix this its greatly appreciated.  I have attached the dwg.  The one in the upper left is the one I have done already and worked, the rest I am having the described issue.

Thanks

[Alfred.NESWADBA · Accepted solution]

Hi,

>> I use subtract command,

>> it says "No solids, surfaces, or regions selected.

Well, take care, you have 3 block-references as well as 3d-solids at the same position, and I guess you have selected a block-reference:

Run command _EXPLODE to get out the 3d-solids from inside the block, then command _SUBTRACT will work well.

- alfred -

[Anonymous]

Yep,

That was it.

Many thanks