simple portion of LISP doesnt work in 2017 but did in 2014

[dtiemeyer]

I have a lisp routine that does not complete correctly in 2017, but did work ok in 2014.   Basically its just a 'layer command' that does not function inside the routine.  Can anybody think of any environmental factors that may cause this? Either drawing variables or cad system/environment variables?

This is the part that does not work (but the command completes, there's no 'hard error):

(command ".-layer" "f" "e-fire-cvrg-n" "")

Earlier in the routine, this layer is generated (if it doesnt already exist) by a call to another LSP file, that's the only thing I can think of, but still, it all worked in 2014.

[Alexander.Rivilis · Accepted solution]

Try to change it with:

 (command-s "_.-layer" "_f" "e-fire-cvrg-n" "")

This pice of code work in my AutoCAD 2017 like a charm if e-fire-cvrg-n is not a current layer.

[dtiemeyer]

Thank you Alexander, this did lead me to the solution.  It turns out I had to use the 'command-s' sequence in more than 1 location in the routine, but when I did, it all worked. Cheers.

Here's the final working bits (where 'prevlay' is defined earlier in the routine):

(command-s "_.-layer" "_set" prevlay "") ;Restore previous layer
(command-s "_.-layer" "f" "e-fire-cvrg-n" "")