LISP on 2020 version

[Anonymous]

Hi everybody.

We have AutoCad version 13 and a few LISP files that work on it. We want to update to version 2020, but we don't know if the LISP files will be compatible with the new version. Does anyone know if we can run these files without problems in the 2020 version.

Thanks in advance for your answers.

[hak_vz]

In general there should not be any problem regarding running lisps. You can download trial version of ACAD 2020 and test if they work correctly.

[Kent1Cooper · Accepted solution]

One thing that could cause trouble:  If you have *error* handlers in any of the routines, and those include (command) functions such as [a likely one could be something like]  (command "_.undo" "_end") , then if an error occurs or you press ESCape to cancel the routine, you will get a message about using (command) functions in the *error* handler.  If that happens, follow the suggestion in the error message, and change it to [in the above example]  (command-s "_.undo" "_end") , and it should work.

[And I'm curious -- are you really talking about "Release 13" from way back in the 1990's, or AutoCAD 2013?]

[Anonymous]

The earlier version is release 13, and the version in witch i am trying is 2020.

[Anonymous]

The earlier version is release 13, and the version in witch i am trying is 2020.

[hak_vz]

If it's not a problem, attach your lisp file to see what can be done to make it work again in ver 2021