using
C# System.lnvalidOperationException:"A second operation started on this context before a previousoperation completed. This is usually caused by different threads using the same instance...
项目中使用了依赖注入，这个错误在我项目中的原因：在async修饰的异步方法中，调用执行数据库操作的方法时，没有使用await关键字调用，因为没有等待该调用，所以在调用完成之前将继续执行该方法。因此，已处理了注入的依赖项。 ......
RFC 1323 Using the Window Scale Option
这是内核协议栈里面的一个发送窗口赋值代码 tp->snd_wnd = ntohs(th->window) << tp->rx_opt.snd_wscale; snd_wscale : 4, /* Window scaling received from sender */ rcv_wscale : ......
TabError: inconsistent use of tabs and spaces in indentation
python 报错 TabError:缩进中不一致地使用制表符和空格 解决方法该bug的原因是，各行存在不同的缩进空格，未统一化。只需将出错的代码行及其前边的所有行，全选中，统一还原靠左边，然后再统一执行缩进快捷键即可！ ......
How to use Xbox Series X as a DVD player All In One
How to use Xbox Series X as a DVD player All In One
如何把 Xbox Series X 做为一个 DVD 播放器使用
Blu-ray Player
蓝光播放器
DVD 播放器
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Using Power Automate to change security role
The Scenario We will be adding a Security Role / Field Security Profile to users in CDS. For this demo, our scenario will be grabbing all the users fr ......
error TS9005: Declaration emit for this file requires using private name 'xxx'. An explicit type annotation may unblock declaration emit.
error TS9005: Declaration emit for this file requires using private name 'distance'. An explicit type annotation may unblock declaration emit. 代码如下： / ......
jackson序列化报 Null key for a Map not allowed in JSON (use a converting NullKeySerializer?)
报错:"requestParam":null,"errorMsg":"org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Null key for a Map not al ......
devicemapper: usage of loopback devices is strongly discouraged for production use. Use `--storage-opt dm.thinpooldev` to specify a custom block storage device.
centos7下docker排坑之WARNING: devicemapper: usage of loopback devices is strongly discouraged docker 安装完成之后，docker info命令下的WARING 首先有两种规避手段，一种是调整devicemap ......
MySQL登录时出现Access denied for user ‘root‘@‘localhost‘ (using password: YES)无法打开的解决方法
发现是springboot结合JDBC时， 我这里输入纯数字加点，就会出现这个问题。 后来我改数据库密码，改成字母开头的数据库密码，就可以了。 但是有个奇怪的是，我方式数字+点的密码是复制过去的，当时idea的编辑器，打开该密码是橙色的。可能是我当时复制的格式有问题。 我现在输入并没有发现这个问题。 ......
Address already in use: JVM_Bind:80
今天maven工程中配置pom.xml时Tomcat配了80端口号，结果提示Address already in use: JVM_Bind:80，也就是80端口被占用，于是就按照往常的惯例去查看是什么进程占用了80端口 1、打开cmd命令窗口，输入netstat -ano | findstr 80 ......
Error response from daemon: conflict: unable to remove repository reference "michaelcs/astrocondairaf" (must force) - container a3e47e4ad50a is using its referenced image fad12202adae
docker删除镜像时出现了这样的问题 解决方法： 强制删除 docer rmi -f [IMAGE ID] ......
CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'
错误描述： root@cef54a23d0c1:/home/xxx/LightSpeech# conda activate lightspeech CommandNotFoundError: Your shell has not been properly configured to use 'co ......
【论文精读 - DDPM】Deep Unsupervised Learning using Nonequilibrium Thermodynamics
数学推导【转载】 数学推导过程来自苏剑林大神的《生成扩散模型漫谈》系列，感谢苏神的无私奉献，让我这样数学功底不好的人也能领略这个当下最为火爆的模型的精髓。 系列中有部分步骤，一眼看过去可能有些费解，所以这里稍微做了展开，作为自己的笔记用。 通俗解释：DDPM=拆楼+建楼 生成模型实际上就是：随机噪声 ......
【】Java Error: Port 9095 was already in use
问题描述 Java Error: Port 9095 was already in use 问题原因 端口被占用导致 解决方案 Windsow系统 netstat -ano|findstr 9090 查询到占用 9090 端口的进程PID为 9784。 tasklist|findstr 9784 查 ......
Using publicly 使用公开遥感数据做非洲贫困分布制图
Using publicly 使用公开遥感数据做非洲贫困分布制图 Abstract 使用了约20000个village-level的点，得到village-level的精度是$r^2$=70% 在时间维度上，使用了district-aggregated change 作为评估尺度，精度是$r^2$= ......
php Trait基类use trait,本类不use
一 回顾trait使用 https://blog.csdn.net/bushuwei/article/details/103514174发现之前本人说明很模糊，自己居然不知道为什么其实这里的$c,就是class B再次回顾逻辑 二 分析 self和static区别说的没毛病 Trait基类use t ......
How to check the USB devices connected to Linux by using Terminal All In One
How to check the USB devices connected to Linux by using Terminal All In One
Raspberry Pi
macOS
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Windows 10 专业版下推送docker镜像到harbor报错：x509: certificate relies on legacy Common Name field, use SANs instead
harbor是公司私有镜像仓库，在Windows 10 专业版上安装上docker DeskTop，客户端成功开启之后，就是推送镜像啦。 记得先登录， docker login --username=admin xxx.harbor.com:10443，这个不能忘记！！ 在实际推送中遇到了几个问题， ......
Problem Y: Understanding Used Sailboat Prices
Like many luxury goods, sailboats vary in value as they age and as market conditions change. The attached “2023_MCM_Problem_Y_Boats.xlsx” file include ......
use macOS terminal can not install MicroPython on Raspberry Pi Pico bug All In One
use macOS terminal can not install MicroPython on Raspberry Pi Pico bug All In One
使用 macOS 终端无法在 Raspberry Pi Pico 上安装 MicroPython bug
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AndroidManifest.xml文件中的uses-library
<application> <uses-library android:name="string" android:required="true" /></application> 实例<application android:allowBackup="true" android:icon="@mi ......
[Typescript] Use never for readable string
const demoFunc = <TObj extends {}>(obj: TObj, key: ErrorIfNever<keyof TObj, `You much pass at least one key`>) => { return obj[key as keyof TObj] } ty ......
解决pip命令无法执行Python问题Unable to create process using...
解决方法 删除： Python37\Lib\site-packages\pip-19.1.dist-info 删除：Python37\Scripts\pip*.exe（所有pip开头的） 安装： python -m pip install --upgrade pip ......
THFuse: An infrared and visible image fusion network using transformer and hybrid feature extractor 论文解读
###THFuse: An infrared and visible image fusion network using transformer and hybrid feature extractor 一种基于Transformer和混合特征提取器的红外与可见光图像融合网络 研究背景： 现有的图 ......
Fatal error in launcher: Unable to create process using '"d:\software\python\python.exe"
Fatal error in launcher: Unable to create process using '"d:\software\python\python.exe" 问题发生： 是由于python 切换环境导致的。 本来python 放在D盘software 的python 中直接放置了 ......
Unable to start the daemon process . This problem might be caused by incorrect configuration of the daemon. For example, an unrecognized jvm option is used.
创建springboot项目的时候报这个错 是因为你选择了Gradle环境 但是你本地没有这个Gradle环境 选择maven环境就可以了 ......
[Javascript] Create 2d array by using Array.from
// Initialize a 2D array with zeros const str1 = "Hello" const str2 = "World" const dp = Array.from({ length: str1.length }, () => Array.from({ length ......
How to use --extra-index-url in requirements.txt in python?
[本文出自天外归云的博客园] 以下内容来自chatGPT的回答（正解，已验证） 问题1：how to use --extra-index-url in requirements.txt in python? To use `--extra-index-url` in `requirements.tx ......
pytest踩坑--运行报错DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3 ,and in 3.9 it will stop working
问题现象： 使用pytest运行用例时，用例执行完毕总会提示以下警告 警告意思：弃用警告：从collections中导入ABCs已被弃用，并在python3.9中将停止工作，可使用collections.abc代替它进行使用 但我代码中并未使用这个库，也没有导入这个库。就很纳闷 解决： 百度了一下解 ......
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
安装mysql8后，本地登录成功，选择数据库报错 ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. 解决办法： 执行语句修改密码：s ......