signature not algorithm available

could not chdir to home directory /home/user:permission denied /bin/bash:Permiss 的原因和解决方法

今天在vm上登录一个user 的时候,发现正确输入用户名和密码后弹出了这样的信息,登陆不上. 发现给出的信息中,permission denied 而 bin permiss; 这种情况表明自己给该用户赋予的权限不足导致问题 通过在/home 目录下用ll检查到该用户的user权限是 通过chmod ......
home permission directory 原因 Permiss

E: The repository 'xxx' is not signed.

在ubuntu上安装了google chrome, 运行时有问题,删除了之后再次运行 sudp apt update 会报错 E: The repository 'http://dl.google.com/linux/chrome/deb stable InRelease' is not signe ......
repository signed 39 The not

Python-Json异常:Object of type Decimal is not JSON serializable

源起: 使用python分离出一串文本,因为是看起来像整数,结果json转换时发生异常:TypeError: Object of type Decimal is not JSON serializable msgInfo={"uid":3232324232} json.dumps(msgInfo, ......

1130 - Host 'xxx' is not allowed to connect to this MySQL server

安装mysql-5.7.32数据库时,使用Navicat工具连接数据库时,出现Host 'xxx' is not allowed to connect to this MySQL server,详情如下: 两种解决方案,任选一个即可: 1、修改mysql数据库用户表数据 执行如下SQL命令: use ......
allowed connect server MySQL 1130

The JSON value of length n is too large and not supported

https://github.com/dotnet/runtime/issues/39953 I'm referring to this issue #30746 that was closed with limit of 125MB staying fixed opposed to being c ......
supported length value large JSON

Rust,linker but `link.exe` was not found

the msvc targets depend on the msvc linker but `link.exe` was not found 这是提示未安装vs studio c++组件,由于vsstudio组件较大,可以选择安装gnu的,具体如下: 命令行执行下边指令 rustup toolch ......
linker found Rust link but

TypeError: Object of type 'Animal' is not JSON serializable/ 自定义对象 转json串

import jsonclass Animal(object): def __init__(self): self.name = 'tom' def __repr__(self): return f'my name is {self.name}&i like apple'd1 = { 'county ......
serializable TypeError 对象 Object Animal

问题(小程序):Uncaught (in promise) thirdScriptError {"errMsg":"redirectTo:fail can not redirectTo a tabbar page"} Object(env: Windows,mp,1.06.2308310; lib: 2.11.0)

这个是跳转出现了问题,点击之后跳转不过去。 解决办法:换一种跳转方式。 方式一:wx.redirectTo:关闭当前所在页面,再跳转到指定的非TabBar页面。不受页面层数限制。 方式二:wx.navigateTo:不关闭当前所在页面,跳转到指定的非TabBar页面,注意页面路径限制是五层。 方式三 ......

Sitecore 里删除 Item 报错 Could not create SSL/TLS secure channel.

解决方法: 前往 mmc 里添加你的域名 win + r 输入 mmc 打开下图面板; ......
Sitecore channel create secure Could

Greedy algorithm basic principle

贪心算法是以动态规划方法为基础的,在每个贪心算法之下,几乎总有一个更繁琐的动态规划算法。 贪心算法和动态规划不同之处在于:是否需要考虑子问题的解 贪心算法并不考虑子问题,直接在当前步骤中做出选择 动态规划无论是自底向上, 贪心算法设计步骤 将最优化问题转化为这样的形式:对其做出一次选择后,只剩下一个 ......
algorithm principle Greedy basic

Macos安装pymssql时报错symbol not found in flat namespace '_bcp_batch'

从2.2.0开始就有很多人遇到类似的问题,但是一直没有明确的解决方案,一直到今天在官方仓库的issue找到了有人贡献的解决方案,经过实际测试有效,所以记录一下: brew install FreeTDS export CFLAGS="-I$(brew --prefix openssl)/includ ......
bcp_batch namespace 时报 pymssql symbol

D365增加Model reference,解决does not designate a class or table编译错误问题

当我们导入基础数据时,需要创建一些基本的Emplyee信息,当引用到HcmHireNewWorkerContract和HcmWorkerTransition时,提示如下错误: 'HcmHireNewWorkerContract'does not designate a class or table. ......
reference designate 错误 问题 Model

Metropolis Algorithms for Representative Subgraph Sampling

目录概主要内容Metropolis graph sampling H\¨{u}bler C. and Kriegel H., Borgwardt K. and Ghahramani Z. Metropolis algorithms for representative subgraph sampli ......

查看显卡使用情况nvidia-smi报错:command not found

辗转查看了很多教程,踩了好多坑,最后终于解决了,参考的相关博客会在后文做引用。 我解决的办法:1、在root下重启机器,执行:reboot2、重启以后,执行:cd /usr/src/,然后ls,查看nvidia-xxx,xxx为支持的版本号;3、安装驱动,执行:sudo apt-get instal ......
nvidia-smi 显卡 command 情况 nvidia

CF1137F Matches Are Not a Child's Play

哈人*3400,是不是贺过了个 1F (? 单点编号 \(\to max + 1\),动态维护 prufer 序列删除了哪些点。 看似不可做,但是不难发现我们一个点被更改其他点的相对次序不会改变,反而 \(x \to max\) 这条链的删除次序到了最后面。 然后我们以权值最大点为根,不难发现每次只 ......
Matches 1137F Child 1137 Play

[spring-mvc.xml] cannot be opened because it does not exist

IOException parsing XML document from class path resource [spring-mvc.xml]; nested exception is java.io.FileNotFoundException: class path resource [sp ......
spring-mvc because spring cannot opened

Detected non-NVML platform: could not load NVML: libnvidia-ml.so.1: cannot open shared object

前言 在 kubernetes 中配置 https://github.com/NVIDIA/k8s-device-plugin 时, 报错:Detected non-NVML platform: could not load NVML: libnvidia-ml.so.1: cannot open ......

在JavaScript中,`!!`(不是not)操作符的作用是什么?

内容来自 DOC https://q.houxu6.top/?s=在JavaScript中,!!(不是not)操作符的作用是什么? 我看到了一些代码,似乎使用了我不知道的操作符,形式为两个感叹号,就像这样:!!。有人能告诉我这个操作符是做什么的吗? 我看到这个操作符的上下文是: this.verti ......
操作符 JavaScript 作用 not

运行shell脚本时报错"[[ : not found"解决方法

实例 if [ "$system" == "CentOS" ]; then echo "yum install bc" elif [ "$system" == "Ubuntu" ] || [ "$system" == "Debian"]; then echo "apt install bc" fi ......
quot 脚本 时报 方法 shell

Redission并发锁报错:IllegalMonitorStateException: attempt to unlock lock, not locked by current thread by node id

生产上突然出现一条报错 j.l.IllegalMonitorStateException: attempt to unlock lock, not locked by current thread by node id: 1411e030-3c44-48d7-9eb6-6030022ce681 th ......

ERROR: The Python ssl extension was not compiled. Missing the OpenSSL lib?

CentOS7 pyenv安装Python 3.10.13 报错 yum install -y openssl-devel openssl11-devel openssl11-lib CPPFLAGS="-I/usr/include/openssl11" LDFLAGS="-L/usr/lib64/ ......
extension compiled Missing OpenSSL Python

Expression #3 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'jira.ji.ID' which is not functionally dependent on columns in GROUP BY clause;only_full_group_by

这个报错的完整信息 Expression #3 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'jira.ji.ID' which is not functionally dependent on ......

Program does not contain a static 'Main' method suitable for an entry point

http://www.kangry.net/blog/?article_id=391&type=article 修改办法,对着项目右键-》属性-》application-》output type设为Class Library即可。 ......
suitable Program contain method static

Plugin 'org.springframework.boot:spring-boot-maven-plugin:' not found

Plugin 'org.springframework.boot:spring-boot-maven-plugin:' not found 一、问题现象 pom.xml 文件中有报红的错误提示,“Plugin 'org.springframework.boot:spring-boot-maven-p ......

查找空的补助 is null 不为空 is not null

对比 select * from emp where comm is null; ......
null is not

myabtis事务synchronization is not active打印日志位置

经常见日志里的有 Creating a new SqlSession Registering transaction synchronization for SqlSession 或者 Creating a new SqlSession SqlSession was not registered f ......
synchronization 位置 事务 myabtis active

[Compose] Callback is not suitable for Async programming

An example of callback implemnetation for handling async flow: function fakeAjax(url, cb) { var fake_responses = { file1: "The first text", file2: "Th ......
programming Callback suitable Compose Async

[906] Replace NaN (Not-a-Number) values with 'Null' in Pandas

In Pandas, you can replace NaN (Not-a-Number) values in a DataFrame with None (Python's None type) or np.nan (NumPy's NaN) values. Here's how you can ......
Not-a-Number Replace Number Pandas values

Javascript报错:Uncaught TypeError: $(...).slide is not a function

检查网站的时候,发现网页出现一个报错, Uncaught TypeError: $(...).slide is not a function 同时,平时没有问题的轮播图,也不轮播了。检查并解决步骤如下: 1.顺着错误提示点过去,发现就是slide函数无法运行。查看相关介绍,表示是jq文件进行了重复引 ......
Javascript TypeError Uncaught function slide

Educational Codeforces Round 153 (Rated for Div. 2) A. Not a Substring

给一个长度为 \(n\) 的括号字符串 \(a\) 。你需要构造一个长度为 \(2n\) 的合法括号字符串 \(b\) ,且满足 \(a\) 不是 \(b\) 的子串。或者回答不可能。 显然若 \(a = ()\) ,则一定不可能构造出 \(b\) ,否则可以。 观察到合法括号穿串中, \(()() ......
Educational Codeforces Substring Round Rated