| 
 | 
 
在执行sudo dnf install python3-opencv -y 时出现以下问题,是超时了吗?怎么解决  
 
 
 
The downloaded packages were saved in cache until the next successful transaction. 
 
You can remove cached packages by executing 'dnf clean packages'. 
Error: Error downloading packages: 
  Curl error (28): Timeout was reached for https://mirrors.fedoraproject.or ... 28&arch=aarch64 [Resolving timed out after 30000 milliseconds] 
 |   
 
 
 
 |