Information: 2021 / 9 / 29 10:01 - build completed with 1 error and 0 warnings in 11S 30ms error exception handling

In today's IDEA When running unit tests , Suddenly, the console saves directly , There's no reason . Directly pop up a line
Information:2021/9/29 10:01 - Build completed with 1 error and 0 warnings in 11s 30ms
The second line is a red exclamation point and Error
There are no other error messages , A face of meng .
Come to a conclusion — restart IDEA.
I did a good job in this project before , When you can't run , I wrote a new print hello world Of main This is also the method of error reporting , Obviously, it's not the code, but the environment .
I found some methods on the Internet , Someone said to use orders msgconfig see windows Push notification system service , But I didn't say whether it was on or off , I don't see why .

Some people say firewall , But I haven't moved the firewall recently , I didn't try either .
Then I just clear the cache and restart to try , Sure enough .
If there are other small partners who encounter similar problems , The first step is to restart it decisively .