It should not be able to start. The tests are all in the real machine test...Because if you want to open it, some computers do not have a camera..Moreover, if there is a camera, it must be connected to it. This is a hardware problem. Contact the current system and introduce the camera into the simulator. It is not written by calling several libraries from software~
If the camera permission is turned off when using a certain software, it may be that the security software on the mobile phone has set the permission for the program. For example, LeSecurity can enter the privacy protection application permission management of LeSecurity (v6.2) to set and manage the usage of camera permission.
The camera can't be used. Generally, it can be solved as follows: 1. Restart the computer; 2. Reinstall the camera driver; 3. If it is an external driver (not the one with the computer itself), you can consider replacing it with another slot to plug and unplug it4. If this is still not possible, you should check your camera for problems.
