The colleague's machine used to connect to svn normally. Unable to connect recently. Report the following information:
svn:E170001:Negotiate authentication failed: 'No valid credentials provided'Find a lot of places. In the end, he had an epiphany and found that he used a company proxy to surf the Internet. As a result, eclipse smartly changed the eclipse access mode to the proxy mode. However, the company proxy server does not support accessing intranet URLs.
The reason is found. Modify directly as follows:
window->Preferences->General->Network Connection->ActiveProvider is changed to Direct.
Immediately, svn can be used normally.