iOS真机调试程序,报如下错误信息: failed to get the task for process XXX 原因: 证书问题,project和targets的证书都必须是开发证书,ADHOC的证书会出现此问题。 …
标签:编程问答
Mac 安装Nginx(ERROR: No pool defined. at least one pool section must be specified in config file)
在用brew安装Nginx过程中发现php文件无法解析,后来定位到是php-fpm没有打开,当启动该进程的时间终端报错: [ERROR: No pool defined. at least one pool sectio…
Spring boot全局异常处理405,415,500
首先把SpringBoot默认的异常处理屏蔽掉: spring: mvc: throw-exception-if-no-handler-found: true resources: add-mappings: false…
启动tomcat 服务报 The file is absent or does not have execute permission
启动tomcat Cannot find bin/catalina.sh The file is absent or does not have execute permission This file is neede…
Git 最著名报错 “ERROR: Permission to XXX.git denied to user”终极解决方案
今天和同事在弄github的时候,遇到了点小麻烦,在全球最大的中文网上一搜,果然不出所料,找不到写解决方案,于是自己在stackOverFlower上看了好几篇,总结了一下,终于找到解决方案!报错如下: ERROR: P…
[Flutter] Creating, Importing & Using Dynamic Widgets from Other Files in a Flutter Application
In this lesson we’ll learn how to import widgets we’ve created in other files & use them in our project. W…
python异常处理
目录 1. 异常的概念 2. 捕获异常 2.1 简单的捕获异常语法 2.2 错误类型捕获 2.3 异常捕获完整语法 3. 异常的传递 4. 抛出raise异常 4.1 应用场景 4.2 抛出异常 1. 异常的概念 程序在…
OpenCV reshape The Matrix is not continuous, thus its number of rows can not be changed
When using OpenCV reshape and gets this error: OpenCV Error: Image step is wrong (The m…
Android TextView : “Do not concatenate text displayed with setText”
参考:http://stackoverflow.com/questions/33164886/android-textview-do-not-concatenate-text-displayed-with-settext…
PBFT协议为什么要求N>3f+1
最坏的情况是:f个节点是有问题的,由于到达顺序的问题,有可能f个有问题的节点比正常的f个节点先返回消息,又要保证收到的正常的节点比有问题的节点多,所以需要满足N-f-f>f => N>3f,所以至少3f…
CopyPngFile Error的报错
关于CopyPngFile Error的报错,在两次的删除png图片,导入再删除的过程中,xcode在编译时就报了如下的错误。很奇怪,我项目中明明没有用到报错相关的png图片。可是却在几次clean再build后,还是依…
gdb
前言 本文参考的资料 https://blog.csdn.net/ithomer/article/details/5929720 core的原理和例子:https://blog.csdn.net/furzoom/arti…