OS Error: nodename nor servname provided, or not known, errno=8

Today, when I was developing, I suddenly found that all the network pictures in my flutter project couldn’t be loaded, and the error message was as follows:
all the network pictures in my flutter project could not be loaded

Then I looked for a solution on the Internet. I looked for it all day, but I didn’t find it

Finally, get a peer’s advice, and the screenshot of the chat is as follows:

So, I’ll delete the project on the real machine, restart the real machine, close the current flutter project, exit vscode, reopen the project, run the installation , and guess what, it’s loaded out

My busy, boring and wasted day

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