这是我用来检查更新,然后启动更新文件的代码。基本上,我用在线文本检查文件版本,看看哪个更大。
Dim wc As New WebClient()
Dim upt As Double = Double.Parse(wc.DownloadString("someurl/update.txt"))
Dim Info As FileVersionInfo
Info = FileVersionInfo.GetVersionInfo(Application.StartupPath & "\app.exe")
怎么修呢?
E: Failed to fetch http://ppa.launchpad.net/mefrio-g/plymouthmanager/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.