Error: SD models must contain stocks

[jszhao]

I have some STMX files, created from STELLA 10.0.4. It does not contain

<variables>
...
</variables>

So read_ximle gives an error message:

Error: SD models must contain stocks

The head of the STMX looks like:

<?xml version="1.0" encoding="utf-8" ?>
<xmile version="1.0" level="3" xmlns="http://www.systemdynamics.org/XMILE" xmlns:isee="http://iseesystems.com/XMILE">

It has an additional level="3".

Now, the workaround is to insert <variables> and </variables> by hand.

P.S.: you can get those STMX files from here

[jandraor]

I'll have a look