iostream cannot e447 find

TypeError: Cannot read properties of null (reading 'level')

一、分析问题 1、一个下拉框组件的更新由另一个下拉框组件控制被动更新列表,子级下拉框的值是由父级下拉框的值调用接口获取,每次父级下拉框值的改变都会改变子级下拉框的数据源也就是会改变子级下拉框的options,切换后之前的父级节点找不到就会报了这个错,父级节点不改变(即不切换)的话不会报错 二、解决方 ......
properties TypeError reading Cannot level

Uncaught TypeError: Cannot read property ‘addEventListener‘ of null 求助!!!!!!

今天在项目中遇到个问题如下: vue项目中public的index.html文件script标签引入了一个外部的js文件,里面有一个方法 每次调用的时候都会报错Uncaught TypeError: Cannot read property ‘addEventListener‘ of null,网上 ......

LINUX:Error while compiling statement: FAILED: RuntimeException Cannot create staging directory

问题截图 可以看到是user=root,权限不够导致 观察发现用的是root用户 更改为hadoop用户,也即是可以启动hive的用户 插入成功。 ......

[LeetCode] 2609. Find the Longest Balanced Substring of a Binary String

You are given a binary string s consisting only of zeroes and ones. A substring of s is considered balanced if all zeroes are before ones and the numb ......
Substring LeetCode Balanced Longest Binary

Configuration failed to find one of freetype2 libpng libtiff-4 libjpeg.

001、问题,安装 devtools中遇到如下报错:Configuration failed to find one of freetype2 libpng libtiff-4 libjpeg. 002、解决方法: [root@pc1 ~]# yum install freetype-devel l ......

import torch_geometric报错Could not find module '...\torch_sparse\_convert_cpu.pyd' (or one of its dependencies). Try using the full path with constructor syntax.

按照官网步骤安装完torch-scatter、torch-sparse、torch-cluster和torch-spline-conv等依赖项,也成功安装了torch_geometric,但在导入的时候还是报错: 原因是没有C++环境,在该网址中https://visualstudio.micros ......

并查集(Union Find Set)

1 基本介绍 并查集是一种用来判断两个元素之间是否有关系的集合。 它的基本思想为:对于两个元素,如果他们之间有关系,则将其连接,以此形成一颗树。 对于任意两个节点,如果它们有相同的根节点,则它们之间有关系。 2. 建立步骤 给定n个点,以及m个关系。 1. 初始状态 将每个节点的根节点都指向自己 f ......
Union Find Set

2023-11-06 Could not find any Electron packages in devDependencies ==》没有安装Electron 导致

推荐使用powershell终端来输入,如果你用的是vscode的终端会出现卡在加载中的情况,而前者则可以通过回车键来刷新加载状态 问题描述:electron项目安装好后,运行npm run start时报错。 解决方案: npm i electron --save-dev ......
Electron devDependencies packages Could 2023

libtorch+cuda12编译失败,Failed to find nvToolsExt

参考链接:Failed to find nvToolsExt - C++ - PyTorch Forums 即在安装了cuda12后再下载cuda11的安装包,并且只选择如图组件。 ......
nvToolsExt libtorch Failed cuda find

[LeetCode] 1535. Find the Winner of an Array Game

Given an integer array arr of distinct integers and an integer k. A game will be played between the first two elements of the array (i.e. arr[0] and a ......
LeetCode Winner Array 1535 Find

./rmblastn: error while loading shared libraries: libzstd.so.1: cannot open shared object file: No such file or directory

001、问题, ./rmblastn 命令报错如下: ./rmblastn: error while loading shared libraries: libzstd.so.1: cannot open shared object file: No such file or directory 0 ......
shared file directory libraries rmblastn

shell find scp 命令

一、背景 有时我们需要把find找到的文件,scp到远程机器上。下面分享一下几个常见用法 二、解决方案 2.1 方案一 查询某个文件下 文件大小大于 10k 的文件 : find /home/user/dir -size +10k 查找大于4的文件,全部复制到另一目录: find /home/use ......
命令 shell find scp

nginx报错 [error] 612#4188: CreateFile() "C:\yjzx\nginx-1.24.0/logs/nginx.pid" failed (2: The system cannot find the file specified)

背景 无论是nginx -s stop还是nginx -s reload命令,都会出现这个错误。 [error] 612#4188: CreateFile() "C:\yjzx\nginx-1.24.0/logs/nginx.pid" failed (2: The system cannot fin ......
nginx quot CreateFile specified cannot

Python:重装Python后,在pycharm运行报错——Cannot run program "C:\Users\*****\Python36\python.exe" (in directory "E:\www\python_tony\spider"): CreateProcess error=2, 系统找不到指定的文件。

电脑重装Python后,重新打开Pycharm执行python,发现报错:Cannot run program "C:\Users\***\Python36\python.exe" (in directory "E:\www\python_tony\spider"): CreateProcess e ......
quot Python python CreateProcess python_tony

linux启动mysql数据库,报错mysql: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such file or directory

如下 原因: 解决方案: 1、在/usr/lib64目录里面找一个差不多名称版本的文件进行链接 # 软连接出一个新的文件 sudo ln -s /usr/lib64/libtinfo.so.6.1 /usr/lib64/libtinfo.so.5 若本服务器没有相近版本的文件 2、从其他服务器下载一 ......
shared mysql file directory libraries

Exception in thread "main" java.net.BindException: Cannot assign requested address

两种情况 1.端口号被占用,导致地址无法绑定 # windows查看端口pid netstat -aon|findstr 8080(端口号) # linux查看端口占用 netstat -anp|grep 8080 2.ip地址与本机地址不匹配,导致地址无法绑定 # windows查看ip ipco ......

can't find package Expect

can't find package Expect while executing "package require Expect" (file "unbuffer"" line 6) 原因是/usr/lib/缺少了/usr/lib/expect5.45/libexpect5.45.so 找到这个文 ......
package Expect find can 39

element cannot be mapped to a null key的解决方法

目录报错:分析解决方案 报错: 日志 ERROR [o.a.c.c.C.[.[.[/sa].[dispatcherServlet]] - Servlet.service() for servlet [dispatcherServlet] in context with path [/sa] thre ......
element 方法 cannot mapped null

rabbitmq Could not find handle.exe, please install from sysinternals

报错:Could not find handle.exe, please install from sysinternals 这是由于rabbitmq 调用 windows系统中handle.exe,但是handle.exe缺失而导致的错误。 解决方案: 下载 https://learn.micro ......
sysinternals rabbitmq install handle please

How to Find the Size of a DB2 Database

How to Find the Size of a DB2 Database EMBER CROOKS JUNE 19, 2012 15 COMMENTS How big is it? How much space do we need if we copy it? How big will it ......
Database Find Size How DB2

ImportError: cannot import name 'Qt3DCore' from 'PyQt5' 我踏马要被PYQT3D玩死了

GPT狗玩意儿除了喊我更新pyqt5,卸载pyqt5,安装pyqt-tools,解决pyqt5版本不兼容的问题之外 他就不能说一句?请你输入命令:pip install pyqt3d 尼玛pyqt5到底是不是自带QT3D的文件啊我很费解 算了不重要,搞了我5个销售,最后考试靠猜的才终于把QT3D给装 ......
39 ImportError Qt3DCore 3DCore cannot

Cannot connect to the Docker

执行docker基础命令失败! Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 原因:docker服务没有启动。 解决方法:执行 systemctl s ......
connect Cannot Docker the to

ERROR: Cannot unpack file C:\Users\17482\AppData\Local\Temp\pip-unpack-9g93t3zt\simple.html

ERROR: Cannot unpack file C:\Users\17482\AppData\Local\Temp\pip-unpack-9g93t3zt\simple.html (downloaded from C:\Users\17482\AppData\Local\Temp\pip-req ......
unpack pip-unpack AppData Cannot simple

多模块mvn构建Unable to find main class

多子模块构建 非核心启动类 <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> ......
模块 Unable class find main

动态库加载失败:error while loading shared libraries: xxx.so: cannot open shared object file: No such file o

ldd main | grep not 由0.1 动态库的工作原理可知,只要把动态库libcalc.so的绝对路径添加到动态载入器ld-linux.so的搜索路径中,那么动态载入器就可以获取到动态库libcalc.so的绝对路径,接着就可以找到动态库文件libcalc.so,将动态库文件载入内存,然 ......
shared file libraries loading 动态

QT VS Tools生成的工程编译提示“cannot open file 'uiAccess='false'”

提示如下图错误: 解决方法: 1、找到QT VS Tools生成的工程文件,如“xxx.vcxproj”。 2、用vscode或其它文本编辑器打开“xxx.vcxproj”。 3、搜索错误提示中的关键字,如“MANIFESTDEPENDENCY”,如下图: 4、删除错误提示的内容,这里从“uiAcc ......
39 uiAccess cannot 工程 Tools

【踩坑】/usr/bin/ld: cannot find -lstdc++: No such file or directory

环境:win10 中的 wsl2 的 Ubuntu 1. 报错 /usr/bin/ld: cannot find -lstdc++: No such file or directory 通过 sudo apt-get install libstdc++6 解决。 2. 安装完之后依旧还是报一样的错 ......
directory cannot lstdc find file

pinia: Cannot read properties of undefined (reading '_s')

使用 Vue3 + Pinia + PNPM + Vite 开发一个前端项目时,运行preview,报错: pinia Cannot read properties of undefined (reading '_s') 报错的代码是压缩后的: function we(e, t, n) { let ......
properties undefined reading Cannot pinia

启动Nginx报错:error while loading shared libraries: libpcre.so.0: cannot open shared object file

1.现象: 输入:/usr/local/nginx/sbin/nginx 报错:/usr/local/nginx/sbin/nginx: error while loading shared libraries: libprofiler.so.0: cannot open shared object ......
shared libraries loading libpcre cannot

查找文件命令find总结以及查找大文件

find / -name *** 示例如下:[dinpay@zk-spark-01 spark]$ find /home/ll -name slaves/home/ll/spark/conf/slaves 查找大于80M的文件find . -type f -size +60M查找并显示属性find ......
文件 命令 find