Why can't oppo mobile phone WeChat health app software work?

Maybe the installation package is not normal.

Solution to abnormal installation package of software installation prompt;

Because the installation package is abnormal, a pop-up window will prompt you to download it again. If downloading again does not solve the problem, you can delete the download process, download records, and delete the installation package, and try downloading again.

The above cannot be solved, please contact customer service.

It may be a system problem, or it may be a mobile phone authorization problem. Let's rule out these two first. If possible, turn it off and on again. If not, send a message to the OPPO mobile phone store to find a staff member.