; error: bad argument type: output-streamp:

Hello LISP experts,

I'm receiving the error message "; error: bad argument type: output-streamp:" when attempting to write to a file with the WRITE-LINE command that I created with the GETFILED command. I also receive the same message when attempting to close the file.

I'm attempting to write a comma delimited file of layers in the drawing, extracting the layer name, color, and linetype.

It would probably be easier to explain if I paste the code:

(setq layer_file (getfiled "Select Location of TXT file!" "" "txt" 1))
(princ "\nExporting Layer Name, Color and Linetype to file......")
(open layer_file "w")
(setq layer_rec (tblnext "Layer" T))
(while layer_rec
(setq layer_name (cdr (assoc 2 layer_rec)))
(setq layer_color (rtos (cdr (assoc 62 layer_rec))2 0))
(setq layer_ltype (cdr (assoc 6 layer_rec)))
(setq layer_info (strcat layer_name "," layer_color "," layer_ltype))
(write-line layer_info layer_file)
(setq layer_rec (tblnext "Layer"))
)
(close layer_file)

Thanks very much for your help!!
Tod

 

You never create the txt file. You pick a location but that is it.
Maybe something liek:

(setq lay_file (strcat lay_file "Exported-layers.txt"))

Tim

 

Hi Tim,

The file is created by the following code:
(setq layer_file (getfiled "Select Location of TXT file!" "" "txt" 1))
I can browse to the file and see it.
!layer_file shows "L:\\Acad\\Support\\Civil-layers.txt"

Command: (open layer_file "w")
#<file "L:\\Acad\\Support\\Civil-layers.txt">

So the file is there and open for write, but I can't write to it.
Perplexed,
Tod

 

Sorry about that. You need to set something to the open file like:

(setq Opened (open lay_file "w"))
(write-line layer_info Opened)
(close Opened)

Tim