下载了k3s，用sudo systemctl status k3s命令，报错Failed to create sandbox for pod" err="rpc error: code = DeadlineExceeded desc = failed to get sandbox image \"rancher/mirrored-p。cd /var/lib/rancher/k3s/agent/et

org.flywaydb.core.internal.exception.FlywaySqlException:[ERROR] Unable to obtain connection from database (jdbc:h2:~/project) for user 'sa': Wronguser name or password [28000-200]给同学改bug，这个错我之前报...

mac电脑安装anaconda下载opencv包

网页页面报错servlet is not a servletpublic class ModifyPwdServlet extends HttpServlet要继承HttpServlet

照着第二版第一行代码敲的调用摄像头部分，因为编译器提示没有android.support.v4.content.fileprovider。就自己导了一个名字带provider的android.provider.DocumentsProvider报错信息如下：E/AndroidRuntime: FATAL EXCEPTION: mainProcess: com.example.cameraalbum