---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
Input In [8], in <cell line: 4>()
      1 import os
      2 from pynq import Overlay
----> 4 ol=Overlay('014.bit')

File /usr/local/share/pynq-venv/lib/python3.10/site-packages/pynq/overlay.py:315, in Overlay.__init__(self, bitfile_name, dtbo, download, ignore_version, device, gen_cache)
    286 def __init__(
    287     self, bitfile_name, dtbo=None, download=True, ignore_version=False, device=None, gen_cache=False
    288 ):
    289     """Return a new Overlay object.
    290 
    291     An overlay instantiates a bitstream object as a member initially.
   (...)
    313 
    314     """
--> 315     super().__init__(bitfile_name, dtbo, partial=False, device=device)
    317     self._register_drivers()
    319     self.device.set_bitfile_name(self.bitfile_name)

File /usr/local/share/pynq-venv/lib/python3.10/site-packages/pynq/bitstream.py:88, in Bitstream.__init__(self, bitfile_name, dtbo, partial, device)
     85 if device is None:
     86     from .pl_server.device import Device
---> 88     device = Device.active_device
     89 self.device = device
     91 # self.xsa = None
     92 # if bitfile_name.endswith(".xsa"):
     93 #    self.xsa_filepath = bitfile_name
     94 #    self.xsa = pynqutils.build_utils.XsaParser(bitfile_name)
     95 #    bitfile_name = self.xsa.bitstreamPaths[0]
     96 #    self.xsa.load_bdc_metadata()

File /usr/local/share/pynq-venv/lib/python3.10/site-packages/pynq/pl_server/device.py:71, in DeviceMeta.active_device(cls)
     69 if not hasattr(cls, "_active_device"):
     70     if len(cls.devices) == 0:
---> 71         raise RuntimeError("No Devices Found")
     72     cls._active_device = cls.devices[0]
     73 return cls._active_device

RuntimeError: No Devices Found