raspberry connect methods to

Flutter/Dart第19天:Dart高级特性之扩展方法(Extension methods)

扩展方法(Extension methods)是Dart语言的另一个高级的特性,我们可以在不改变、不继承原类型或类情况下,给类型或类增加方法,增强其功能。在Java中,我们经常看到StringUtils/MapUtils等String/Map类型的工具类,但是在Dart中,这些工具类统统不需要,因为... ......
Dart Extension 特性 Flutter methods

vue3路由转发报错Failed to resolve component: router-link

//在学习vue3路由转发的时候,总是报路由的一些方法无法识别,undefined 报错: // App.vue:9 [Vue warn]: Failed to resolve component: router-link // vue路由跳转报错Cannot read properties of ......
路由 router-link component resolve Failed

Failed to connect to raw.githubusercontent.com:443

在安装brew的时候根据https://brew.sh/ 上的提示在终端上键入 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" 然后提示 curl: (7) ......
githubusercontent connect Failed to 443

docker compose failed to solve with frontend dockerfile.v0: failed to create LLB definition: unexpected status code [manifests 18.04]: 403 Forbidden

使用docker build命令构建镜像报: “failed to solve with frontend dockerfile.v0: failed to create LLB definition: unexpected status code [manifests 18.04]: 403 Fo ......

How to format lists in pandoc-generated docx documents?

Sorry, the list indentations are currently hard-coded and can't be customized. You could, however, postprocess the docx produced by pandoc, changing t ......

.Net 5.0 程序在 Linux 环境访问 SqlServer 2008R2 莫名报错:Connection reset by peer

同样的代码,在 Windows 上运行的好好的,拿到 CentOS 7 上运行就出现报错 Connection reset by peer 的处理方法。 ......
Connection SqlServer 环境 程序 2008R2

Python打开https链接报错:unable to get local issuer certificate

Python打开https链接报错:unable to get local issuer certificate 或安装Python3.10以上版本,需要openssl 1.1.1以上版本,会导致openssl 下面缺少证书,记录下安装方法 问题描述: 当使用urllib.urlopen打开一个 h ......
certificate 链接 Python unable issuer

Failed to load plugin '@typescript-eslint' declared in '.eslintrc.cjs

项目配置依赖: vue3.3.4 + vite4.4.11 + eslint8.46.0 报错信息 Failed to load plugin '@typescript-eslint' declared in '.eslintrc.cjs » @vue/eslint-config-typescrip ......

采坑-阿里云 kex_exchange_identification: read: Connection reset by peer

自己买了台阿里的测试服务器,打开终端,输入命令 ssh root@xxx 等待输入密码。 **报错:kex_exchange_identification: read: Connection reset by peer****** 昨天刚用的,今天咋回事,然后试了试公司的服务器是可以的。然后就开始百 ......

[LeetCode] 2265. Count Nodes Equal to Average of Subtree

Given the root of a binary tree, return the number of nodes where the value of the node is equal to the average of the values in its subtree. Note: Th ......
LeetCode Average Subtree Count Equal

【zabbix】configure: error: Unable to use libevent (libevent check failed)解决方案

安装zabbix,在zabbix目录下执行编译命令时报错configure: error: Unable to use libevent (libevent check failed),如图: 说明:新服务器,一般依赖不足,需要视情况安装依赖,问题解决。 解决方案: yum install libe ......

Try `--no-discard-stderr' if option outputs to stderr

001、报错如下: 002、解决方法 在3694行 的末尾加上 --no-discard-stderr sed -i '3694 s/$/ --no-discard-stderr /' Makefile ## 在3694末尾添加上--no-discard-stderr, -i表示在原文中添加 003 ......

Seata 问题:Could not found property service.disableGlobalTransaction, try to use default value instead

问题描述 在启动一个 Seata 项目时,报错如下: 提示没有发现 service.disableGlobalTransaction 这个属性 问题分析 从打印信息显示,应该是 service.disableGlobalTransaction 这个属性没有配置。所以尝试在 application.y ......

解决failure: repodata/repomd.xml from kubernetes: [Errno 256] No more mirrors to try

解决方法:出现这个问题的主要原因是阿里的国内yum源出现问题了,应该是文件换路径或升级了,或者原来的文件不存在了;提示提供1-5种解决方案,此时,只需要修改/etc/yum.repos.d/kubernetes.repo的gpgcheck和repo_gpgcheck参数,要求变为0,见下: cat ......
kubernetes repodata failure mirrors repomd

mysql docker容器中导入数据库失败 Failed to open file ‘‘****.sql‘‘, error: 2

mysql docker 容器中导入数据库失败【Failed to open file ‘’****.sql’’, error: 2】使用浑身解数docker exec -it xxxxxxxxx sh 进入mysql容器。mysql -uroot -pxxxx 登陆use database; 切换 ......
容器 数据库 数据 docker Failed

报错 org.springframework.dao.DataIntegrityViolationException: Error attempting to get column

原因是持久化层的字段属性 跟 数据库的没有对应上, 类型不对 dao.DataIntegrityViolationException: Error attempting to get column 'STATUS' from result set. <if test="record.status ! ......

[933] In ArcPy, how to get the geometry of a feature from a shapefile

In ArcPy, you can get the geometry of a feature from a shapefile using the SearchCursor or UpdateCursor and the SHAPE@ token to access the geometry of ......
shapefile geometry feature ArcPy from

[932] In ArcPy, how to get the extent of a shapefile

In ArcPy, you can get the extent of a shapefile using the Describe function and the extent property. Here's how you can do it: import arcpy # Set the ......
shapefile extent ArcPy 932 how

[Violation] Added non-passive event listener to a scroll-blocking <some> event. Consider marking event handler as 'passive' to make the page more responsive.

https://stackoverflow.com/questions/39152877/consider-marking-event-handler-as-passive-to-make-the-page-more-responsive Passive event listeners:https: ......

vue 在模板/v-bind中使用方法methods 的问题

每当渲染发生时,就会调用该方法并运行该函数。 每次组件渲染时都会运行。 模板中的函数调用会带来更大的性能成本。(相比computed) 每次组件重新渲染时,vue 模板中调用的函数都会执行。如果这些函数的计算成本很高,它们可能会降低应用程序的性能。你不希望这样,是吗?😁 ......
使用方法 模板 methods 方法 v-bind

network提示use --host to expose

项目运行之后,想要通过局域网ip访问项目,无法访问: 查了一下问题,没有配置netWork,在vite.config.ts如下配置,就可以了 server: { host: '0.0.0.0' } 有问题欢迎交流!!! ......
network expose host use to

doris FE启动异常:org.yaml.snakeyaml.representer.Representer: method <init>()V not found

doris FF启动异常,异常信息如下: 2023-11-01 09:53:22,691 INFO (main|1) [PaloFe.start():124] Palo FE starting... 2023-11-01 09:53:22,699 INFO (main|1) [FrontendOpt ......

[930] arcpy - change spatial reference, zoom to layer and export to PDF

The general idea is as follows: aprx -> layout -> map -> layer -> extent layout -> setExtent layout -> exportToPDF The script is as follows: def expor ......
reference spatial change export arcpy

【图形学笔记】Lecture07-Introduction to Geometry几何

Lecture07-Introduction to Geometry几何 目录Lecture07-Introduction to Geometry几何Implicit Surface 隐式的曲面CSG-Constructive Solid Geometry(Implicit)构造刚体几何图形Blen ......
Introduction 几何 Geometry 图形 Lecture

容器报错 Error response from daemon: driver failed programming external connectivity on endpoint

在启动容器时的容器时,会出现报错:Error response from daemon: driver failed programming external connectivity on endpoint XXX(端口映射或启动容器时报错) 如下: 原因:在我们启动了Docker后,我们再对防火 ......

redis cluster 多节点部署时出现Waiting for the cluster to join

如图显示一直卡在这里: 可能由一下几种情况 1、redis.conf 中的bind 配置问题 可能配置有问题限制的访问redis ,通常设置为本机IP ,或者可以设置为 0.0.0.0 进行测试 2、可能是集群总线端口未开放 若通讯端口为6379,那么集群总线端口16379一定要打开 3、clust ......
cluster 节点 Waiting redis join

5. Road to C1 (Quick Tips)

1. From Now to C1 Now is the time to talk about the things that you can do later on after finishing this challenge. After those ten days, and even if ......
Quick Road Tips C1 to

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

本地起服务报错Logging system failed to initialize using configuration from 'file:config/log4j2.xml'

问题现象: 本地起服务报错Logging system failed to initialize using configuration from 'file:config/log4j2.xml' 解决方法: 1、检查一下依赖 <dependency> <groupId>org.springfram ......

dom-to-image图像失真

// height: document.getElementById("hwLabelform").scrollHeight,//canvas高 // width: document.getElementById("hwLabelform").scrollWidth, //canvas宽 // sc ......
dom-to-image 图像 image dom to