E: Failed to fetch cdrom://Ubuntu 14.10 _Utopic Unicorn_ - Release amd64 (20141022.1)/dists/utopic/main/binary-amd64/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
在使用sudo apt-get install git在我的ubuntu14.04上安装git之后,我想安装git。原木在这里:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package git is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is o
下面是我试图更新Ubuntu时遇到的错误:
Could not initialize the package information
An unresolvable problem occurred while initializing the package information.
Please report this bug against the 'update-manager' package and include the following error message:
'E:Encountered a section with no Package: h
我有一个预先存在的k8集群,我想向其中添加一个节点。似乎有一个版本问题,我不知道如何解决它。
当我尝试加入新节点时(使用kubeadm join):
...
[kubelet] Downloading configuration for the kubelet from the "kubelet-config-1.12" ConfigMap in the kube-system namespace
configmaps "kubelet-config-1.12" is forbidden: User "system:bootstrap:rse
我使用的是联想IdeaPad V15和Fedora 32。最近,在用户登录到Linux系统后,该设备只会产生五声哔声(一次)。但是Windows 10并没有出现这种情况,所以这可能不是硬件问题。这台笔记本电脑是几周前才买的。当我输入系统用户登录密码和登录时,beep声音会在启动后发生。有什么解决办法吗?
编辑1:我在fedora32的另一个内核中尝试了这一点。就像以前一样发生了。系统的声音是静音的。
我的boot.log显示
Failed to start System Security Services Daemon
Failed to start Security Auditing Ser
我读了“你好机器人”这本书。应用程序应该会播放一段视频。我把视频复制到res/raw。应用程序不运行。为什么?
我得到以下错误:
video cannot be resolved or is not a field
Video.java
package org.example.video;
import android.app.Activity;
import android.os.Bundle;
import android.widget.VideoView;
public class Video extends Activity{
@Override
public voi