Can't grab frame, what happend?

Python
1

Hallo, I wanna asking for help. Why my visual code show me this message wheen I wanna run my code? Camera from my opencv pop up but didn’t work whit this message occur. I use 2 cameras btw

PS D:\TUGAS AKHIR\Parkir\PythonTA> & C:/Users/ALBINFERO/AppData/Local/Programs/Python/Python38-32/python.exe "d:/TUGAS AKHIR/Parkir/PythonTA/livestream_parking.py"
db: <mysql.connector.connection.MySQLConnection object at 0x013BE718>
[ WARN:1] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-ep71p_ws\opencv\modules\videoio\src\cap_msmf.cpp (376) `anonymous-namespace'::SourceReaderCB::OnReadSample videoio(MSMF): OnReadSample() is called with error status: -1072873821
[ WARN:1] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-ep71p_ws\opencv\modules\videoio\src\cap_msmf.cpp (388) `anonymous-namespace'::SourceReaderCB::OnReadSample videoio(MSMF): async ReadSample() call is failed with error status: -1072873821
[ WARN:0] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-ep71p_ws\opencv\modules\videoio\src\cap_msmf.cpp (1022) CvCapture_MSMF::grabFrame videoio(MSMF): can't grab frame. Error: -1072873821
[ WARN:0] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-ep71p_ws\opencv\modules\videoio\src\cap_msmf.cpp (1022) CvCapture_MSMF::grabFrame videoio(MSMF): can't grab frame. Error: -2147483638
[ WARN:0] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-ep71p_ws\opencv\modules\videoio\src\cap_msmf.cpp (1022) CvCapture_MSMF::grabFrame videoio(MSMF): can't grab frame. Error: -2147483638

Anyone can help me to solve it? Thanks
2
  1. 2 webcams might saturate the usb bus
  2. try a different backend: cv2.VideoCapture(0, CAP_DSHOW)
3
  1. your code could be at fault. show your code.