Autocad problem

[civil mo7amed]

please if any one know the solution of this problems in Autocad 2010 ???

 

1 - I ' can't rename or name any layers using comma ( , ) in the name like - 1,50 -

 

2- in external reference what the meaning of circular reference .

 

3- in some drawing when i try to attach external reference autocad can't attach and reply to me regenerating model - after making purge and regenerating autocad give the same reply .

 

i ' m sorry for prolixity

[feargt]

You cannot use any of the following symbols or characters in layer names:

 

/\"":;?*,=`

 

You could use an underscore like 1_50 instead.

[Cad64]

2- in external reference what the meaning of circular reference .

 

Circular Reference: http://docs.autodesk.com/ACD/2010/ENU/AutoCAD%202010%20User%20Documentation/index.html?url=WS1a9193826455f5ffa23ce210c4a30acaf-5cfe.htm,topicNumber=d0e151068

[RobDraw]

and for #3:

This could be due to the circular reference or there could be something in the XREF that is causing a problem. If solving the circular reference does not fix it, let us know and we will try to help.

[neophoible]

i ' m sorry for prolixity

And thank you for "prolixity". I can't tell you how much I've learned from non-native speakers using what's supposedly my language! I mean, everyone knows I'm often guilty of it, just no one has ever accused me of it, probably because they didn't know the word either! Oh, and BTW, you were not guilty of it here.