Error retrieving vm list

Adafruit Huzzah Feather. I was able to register without error, but virtualizing quickly gives this error trace:

[fatal] Can’t retrieve available virtual machines
Traceback (most recent call last):
  File “C:\Users\Brian\zerynth2\dist\r2.0.11\ztc\virtualmachines\”, line 208, in available
    rj = res.json()
  File “C:\Users\Brian\zerynth2\sys\python\lib\site-packages\requests\”, line 841, in json
    return complexjson.loads(self.text, **kwargs)
  File “C:\Users\Brian\zerynth2\sys\python\lib\json\”, line 319, in loads
    return _default_decoder.decode(s)
  File “C:\Users\Brian\zerynth2\sys\python\lib\json\”, line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File “C:\Users\Brian\zerynth2\sys\python\lib\json\”, line 357, in raw_decode
    raise JSONDecodeError(“Expecting value”, s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
Error retrieving vm list

I’m just getting started, so I don’t know if this is an installation problem. Maybe a rights problem? I uninstalled and re-installed to no avail.

Hello @baxter ,

Zerynth r2.1.0 has just been released; it implements a new licensing scheme for virtual machines that is not compatible with previous Zerynth versions (hence the error you get). All you have to do is update to r2.1.0 by clicking on the “System Update” notification in Zerynth Studio, more details here

My version is the updated one but still the same problem is there.
Error retrieving vm list
R2.2.0 version
Please reply asap. Thanking in advance.

Hello @sandeep_anandan,

can you try to open a terminal and run:

ztc vm list

Let me know