lrucache recently least used
【Java异常】Variable used in lambda expression should be final or effectively final
https://blog.csdn.net/weixin_44299027/article/details/117333667 *lambda表达式中使用的变量应该是final或者有效的final*，也就是说，lambda 表达式只能引用标记了 final 的外层局部变量，这就是说不能在 lambd ......
'GridViewDeletedEventArgs '末包含' RowIndex "的定义，并且找不到可接受第一 个"GridViewDeletedEventArgs类型参数的扩展方法RowIndex "(是否缺少using指令或程序集引用?)
页面中设置了“ OnRowDeleting="List_RowDeleting" DataKeyNames="id"”后台代码为：行 178: protected void List_RowDeleting(object sender, GridViewDeletedEventArgs e)行 17 ......
ERROR: database "server" is being accessed by other users DETAIL: There is 1 other session using the database.
根据错误消息，删除数据库 "server" 失败，原因是有其他用户的会话正在使用该数据库。在 PostgreSQL 中，如果有其他会话正在访问或连接到数据库，那么将无法删除该数据库。 为了成功删除数据库，需要确保没有其他会话正在使用该数据库。 以下是可能的解决方法： 1. 断开所有连接：在尝试删除数 ......
Using PL/SQL Object Types for JSON
``` # https://docs.oracle.com/en/database/oracle/oracle-database/12.2/adjsn/using-PLSQL-object-types-for-JSON.html#GUID-F0561593-D0B9-44EA-9C8C-ACB6AA ......
kettle连接数据库报错：Error connecting to database: (using class org.gjt.mm.mysql.Driver) Could not create
kettle连接MySQL报错 但已经把相应的包放到kettle的lib目录下时，仍然报连接不上的错误，那可能是MySQL时区的问题。解决如下：登入MySQL修改为东八区的命令：方法一： mysql> set global max_allowed_packet=1024*1024; mysql> s ......
error 'fun' is assigned a value but never used @typesc
在vue3+ts 的项目中在进行eslint 配置之后 在main.ts 进行测试 出现了 error 'fun' is assigned a value but never used @typesc 错误’fun’被分配了一个值，但从未使用过没有未使用的变量 在 package.json 的 ru ......
在cmd中使用pip命令出现报错Fatal error in launcher: Unable to create process using
1. 我找到了之前安装python的安装包，进行了修复 2. 然后在cmd中输入了where pip 看看是否有重复的pip路径 发现没有 3. 重新尝试打开cmd后输入命令 问题就解决了 ......
Linux - Check If File Is Empty Or Not Using Shell Script
## Linux - Check If File Is Empty Or Not Using Shell Script How do I check if a file is empty or not using bash or ksh shell script under a UNIX / Lin ......
__use_no_semihosting 与调用C库函数冲突
在已经移植freetype代码(使用了大量的C库函数)中，将printf硬件重定向到串口后，#pragma import(__use_no_semihosting_swi)与调用C库函数冲突，错误如下： ERROR:L6915E:Library reports error:__use_no_semi ......
ERROR [ModelSpecification.spec] At least one type of specification is required
项目在启动过程中会打印大量上述标题异常，最后在github翻看到解决办法。 参考这篇：[generator-jhipster/issues](https://github.com/jhipster/generator-jhipster/issues/13835) 具体解决办法：[supress no ......
[CSS] Using `inset` to replace `top, right, bottom, left`
When working with positioned elements, you often write code like this: .some-element { position: absolute; top: 0; left: 0; right: 0; bottom: 0; } Thi ......
Linux系统Apache报错httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain. Set the 'ServerName' directive globally to suppress this message
解决办法： 在配置文件中加一句ServerName localhost:端口号 # echo "ServerName localhost:8068" >> /etc/httpd/conf/httpd.conf 重启Apache即可解决。 ......
QSqlDatabasePrivate::removeDatabase: connection ‘myConnection’ is still in use, all queries will cease to work
1. 解决QSqlDatabasePrivate::removeDatabase: connection ‘myConnection’ is still in use, all queries will cease to work的问题该问题主要是因为没有关闭之前的数据库连接，然后又需要创建新的数据 ......
Learn about some useful truck diagnostic scanner tools
Have you ever experienced the frustration of unexpected breakdowns with your truck? Or maybe you’re tired of paying expensive diagnostic fees at your ......
[未解决] vue transform-blocks解析源代码报错：Illegal tag name. Use '<' to print '<'.
报错内容： [vite] Internal server error: Illegal tag name. Use '<' to print '`标签后报错，但其他vue文件可以正常读取和展示。 报错的文件，去掉``标签就可以正常加载。报错的方法是vue-compiler的`baseParse()` ......
使用node开发脚手架报错：Error [ERR_REQUIRE_ESM]: Must use import to load ES Module
在使用 node 开发脚手架的时候，每次执行命令都会报错 ：Error [ERR_REQUIRE_ESM]: Must use import to load ES Module 经过排查发现，原因为 chalk 包为 5 版本以上导致的。 const chalk = require('chalk') ......
红帽报错：This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
原因：Red Hat Subscription Manager订阅管理器未订阅注册 解决：禁用 配置文件: /etc/yum/pluginconf.d/subscription-manager.conf # vim /etc/yum/pluginconf.d/subscription-manager ......
Add a self-signed SSL certificate using OpenSSL
```bash sudo apt-get install openssl cd /etc/nginx sudo mkdir ssl sudo openssl req -batch -x509 -nodes -days 365 \ -newkey rsa:2048 \ -keyout /etc/ngi ......
checking whether to use .ctors/.dtors header and trailer... configure: error: missing __attribute__ ((constructor)) support??
001、问题：checking whether to use .ctors/.dtors header and trailer... configure: error: missing __attribute__ ((constructor)) support?? [root@PC1 build]# ......
Abp Blazor WebAssembly - Polymorphic DTO Deserialization using System.Text.Json
@@abp 4.0 dto jobject https://stackoverflow.com/questions/70032776/abp-blazor-webassembly-polymorphic-dto-deserialization-using-system-text-json 1 Abp ......
idea报错 java: You aren't using a compiler supported by lombok, so lombok will not work and has been dis
转‘’： idea较新版本识别不了lombok生成的方法 在这增加参数： -Djps.track.ap.dependencies=false ......
ansible构建失败 scp transfer mechanism failed on **** Use ANSIBLE DEBUG=1\nto see detailed information
ansible构建docker服务的失败排查经过（之前ansible构建成功） 第一步： 使用ansible 对应ip/或者在/etc/ansible/hosts中配置的label -m ping 查看当前连接对应服务器状态 对应失败服务器的连接状态 *@* * * * | FAILED! => { ......
mysql报错：You must reset your password using ALTER USER statement before executing this statement.
mysql报错：You must reset your password using ALTER USER statement before executing this statement.新安装mysql后，登录后，执行任何命令都会报错：You must reset your password ......
custom use 定义 以及uuid 做pk
applicaton/models/user.py import uuid from django.contrib.auth.models import AbstractUser from django.contrib.auth.validators import UnicodeUsernameVa ......
RxJs 里的 using operator 的使用场景介绍
RxJS 的 `using` 操作符是一种创建可观察对象的方法，它可以处理订阅开始时和结束时的资源分配。这使得 `using` 在处理需要清理的资源（如数据库连接、文件句柄或网络连接）时非常有用。 `using` 操作符创建一个可观察对象，该对象会在订阅开始时创建一个资源，并在订阅结束时释放该资源。 ......
PromptLang：A simple prompt-based programming language specifically designed for use inside GPT prompts
PromptLang：A simple prompt-based programming language specifically designed for use inside GPT prompts ......
Query2box Reasoning over Knowledge Graphs in Vector Space using Box Embeddings
[TOC] > [Ren H., Hu W. and Leskovec J. Query2box: Reasoning over knowledge graphs in vector space using box embeddings. ICLR, 2020.](http://arxiv.org/ ......
node 运行报错 SyntaxError: Cannot use import statement outside a module
# 报错信息 ``` PS D:\myCode\excercise\node> node index.js (node:26820) Warning: To load an ES module, set "type": "module" in the package.json or use the ......
LEA: Improving Sentence Similarity Robustness to Typos Using Lexical Attention Bias 论文阅读
# LEA: Improving Sentence Similarity Robustness to Typos Using Lexical Attention Bias 论文阅读 KDD 2023 [原文地址](https://arxiv.org/abs/2307.02912) ## Introd ......
django python manage.py migrate 后报错字段长度超了 django.db.utils.OperationalError: (1118 'Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535.
现象： 在models.py 将CharField字段的maxlength=修改后，执行ython manage.py migrate 报错django.db.utils.OperationalError: (1118 'Row size too large. The maximum row siz ......