---------------------------------------------------------------------------FileNotFoundError Traceback (most recent call last)E:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\font_manager.py in <module>() 1355 try:-> 1356 fontManager = json_load(_fmcache) 1357 if (not hasattr(fontManager, '_version') orE:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\font_manager.py in json_load(filename) 890 """--> 891 with open(filename, 'r') as fh: 892 return json.load(fh, object_hook=_json_decode)FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\Dew\\.matplotlib\\fontlist-v300.json'During handling of the above exception, another exception occurred:PermissionError Traceback (most recent call last)<ipython-input-5-eff513f636fd> in <module>()----> 1 import matplotlib.pyplot as pltE:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\pyplot.py in <module>() 30 from cycler import cycler 31 import matplotlib---> 32 import matplotlib.colorbar 33 import matplotlib.image 34 from matplotlib import rcsetup, styleE:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\colorbar.py in <module>() 30 import matplotlib.collections as collections 31 import matplotlib.colors as colors---> 32 import matplotlib.contour as contour 33 import matplotlib.cm as cm 34 import matplotlib.gridspec as gridspecE:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\contour.py in <module>() 16 import matplotlib.colors as mcolors 17 import matplotlib.collections as mcoll---> 18 import matplotlib.font_manager as font_manager 19 import matplotlib.text as text 20 import matplotlib.cbook as cbookE:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\font_manager.py in <module>() 1364 raise 1365 except Exception:-> 1366 _rebuild() 1367 else: 1368 _rebuild()E:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\font_manager.py in _rebuild() 1348 1349 if _fmcache:-> 1350 with cbook._lock_path(_fmcache): 1351 json_dump(fontManager, _fmcache) 1352 _log.debug("generated new fontManager")E:\Anaconda3\envs\tensorflow\lib\contextlib.py in __enter__(self) 57 def __enter__(self): 58 try:---> 59 return next(self.gen) 60 except StopIteration: 61 raise RuntimeError("generator didn't yield") from NoneE:\Anaconda3\envs\tensorflow\lib\site-packages\matplotlib\cbook\__init__.py in _lock_path(path) 1845 for _ in range(retries): 1846 try:-> 1847 with lock_path.open("xb"): 1848 break 1849 except FileExistsError:E:\Anaconda3\envs\tensorflow\lib\pathlib.py in open(self, mode, buffering, encoding, errors, newline) 1149 self._raise_closed() 1150 return io.open(str(self), mode, buffering, encoding, errors, newline,-> 1151 opener=self._opener) 1152 1153 def read_bytes(self):E:\Anaconda3\envs\tensorflow\lib\pathlib.py in _opener(self, name, flags, mode) 1003 def _opener(self, name, flags, mode=0o666): 1004 # A stub for the opener argument to built-in open()-> 1005 return self._accessor.open(self, flags, mode) 1006 1007 def _raw_open(self, flags, mode=0o777):E:\Anaconda3\envs\tensorflow\lib\pathlib.py in wrapped(pathobj, *args) 369 @functools.wraps(strfunc) 370 def wrapped(pathobj, *args):--> 371 return strfunc(str(pathobj), *args) 372 return staticmethod(wrapped) 373 PermissionError: [Errno 13] Permission denied: 'C:\\Users\\Dew\\.matplotlib\\fontlist-v300.json.matplotlib-lock'