sounddevice.PortAudioError: Error opening Stream: Illegal combination of I/O devices [PaErrorCode -9993]

[zhuziying]

Exception in thread Thread-8 (soundinput): Traceback (most recent call last): File "C:\Users\nbazz.conda\envs\Voice\lib\threading.py", line 1009, in _bootstrap_inner self.run() File "C:\Users\nbazz.conda\envs\Voice\lib\threading.py", line 946, in run self._target(*self._args, **self._kwargs) File "E:\gitprojects\Retrieval-based-Voice-Conversion-WebUI\gui.py", line 535, in soundinput with sd.Stream( File "C:\Users\nbazz.conda\envs\Voice\lib\site-packages\sounddevice.py", line 1800, in init _StreamBase.init(self, kind='duplex', wrap_callback='array', File "C:\Users\nbazz.conda\envs\Voice\lib\site-packages\sounddevice.py", line 898, in init _check(_lib.Pa_OpenStream(self._ptr, iparameters, oparameters, File "C:\Users\nbazz.conda\envs\Voice\lib\site-packages\sounddevice.py", line 2747, in _check raise PortAudioError(errormsg, err) sounddevice.PortAudioError: Error opening Stream: Illegal combination of I/O devices [PaErrorCode -9993] why i get this problem?