Steps to solve application errors: 1. First eliminate the cause of the virus, use anti-virus software, such as the latest version of 360 anti-virus to quickly kill for 3-5 minutes, and click "Deal with it immediately" according to the inspection results. 2. If the application error prompts that the file is missing, it may be that the file is damaged. According to this component, we can find out which system component is damaged, reinstall related components and restore program files, which can generally be solved. 3. If the components of related software are lost, just reinstall the software. For example, when you run Thunder, you will be prompted that a file is missing. You can try to reinstall Thunder. 4. If the above method is invalid, it may be that the conflict between softwares leads to the error. The solution is to try to close several unrelated running applications and see if the error will reappear.