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Ubuntu ls: cannot open directory .: Permission denied

 把该目录赋予权限:sudochmod777xxx ...

mkdir()提示No such file or directory错误的解决方法

转自:http://www.02405.com/program/php/1692.html在php中使用mkdir()方法创建文件夹时报错:Nosuchfileordirectory,出错代码如下:$uploads_dir='./Public/files/uploads/'.date('y-m-d',time()).'...
代码星球 ·2020-08-09

机器学习常见的几种评价指标:精确率(Precision)、召回率(Recall)、F值(F-measure)、ROC曲线、AUC、准确率(Accuracy)

原文链接:https://blog.csdn.net/weixin_42518879/article/details/83959319主要内容:机器学习中常见的几种评价指标,它们各自的含义和计算(注意本文针对二元分类器!)1、混淆矩阵TruePositive(真正,TP):将正类预测为正类的数目TrueNegative...

YII2数据库操作出现类似Database Exception – yiidbException SQLSTATE[HY000] [2002] No such file or director

参考文章:https://blog.csdn.net/zqtsx/article/details/41845511我的系统时Ubuntu18使用上面的方法时发现,没有MySQL.socket,然后谷歌如apch何重建socket,找了半天感觉都是同一篇文章的不同转载,哎。。。  运行:phpinfo()只有MySQL的...

cmd 执行Dcpromo错误:在该 SKU 上不支持 Active Directory 域服务安装向导,Windows Server 2008 R2 Enterprise 配置AD(Active Directory)域控制器

  今天,要安装AD域控制器,运行dcpromo结果提示:在该SKU上不支持ActiveDirectory域服务安装向导。  以前弄的时候直接就通过了,这次咋回事?终于搞了大半天搞定了。    主要原因:我的Windows2008R2的版本是WEB版。不支持AD角色,只有DNS和IIS两个角色,醉了......,安装的...

gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error is not recoverable: exiting now

 [root@Gris-11140FMIS2600bak]#tar-zxvf/home/oradata/FMIS2600DMP.tar.gzgzip:stdin:notingzipformattar:Childreturnedstatus1tar:Errorisnotrecoverable:exitingno...
代码星球 ·2020-08-09

/usr/bin/perl:bad interpreter:No such file or directory 的解决办法

 yum-yinstallgccgcc-c++perlmakekernel-headerskernel-devel 可能会提示:Cannotfindavalidbaseurlforrepo:base/7/x86_6这是因为没有网! 参考:https://blog.csdn.net/Hell...

memcached: error while loading shared libraries: libevent-2.0.so.5: cannot open shared object file: No such file or directory

 1.在http://libevent.org/  下载libevent-2.0.22-stable.tar.gz2.tar-zxvf libevent-2.0.22-stable.tar.gz3.cd libevent-2.0.22-stable4./configur...

解决错误 fatal error C1010: unexpected end of file while looking for precompiled head

 在编译VS时候,出现fatalerrorC1010:unexpectedendoffilewhilelookingforprecompiledhead。  问题详细解释:致命错误C1010,在寻找预编译指示头文件时,文件未预期结束。就是没有找到预编译指示信息的问文件。顾名思义就是预编译因...

msgsrvmgr.cpp:5:37: fatal error: kdl_conversions/kdl_msg.h: No such file or directory #include <kdl_conversions/kdl_msg.h>

 /home/xxx/ros_workspace/src/bp_protocol_bridge/protospot/src/msgsrvmgr.cpp:5:37:fatalerror:kdl_conversions/kdl_msg.h:Nosuchfileordirectory#include<kdl_...

/msgsrvmgr.cpp:4:26: fatal error: kdl/frames.hpp: No such file or directory #include <kdl/frames.hpp>

 /home/xxx/ros_workspace/src/bp_protocol_bridge/protospot/src/msgsrvmgr.cpp:4:26:fatalerror:kdl/frames.hpp:Nosuchfileordirectory#include<kdl/frames.hpp&...

ssh connection refused,,,ssh: unrecognized service

 #如果没有发现ssh进程说明ssh没有启动username@hostname:~$ ps-e|grepssh #在服务端启动服务username@hostname:~$servicesshstartssh:unrecognizedservice#在本机远程到服务端bogon:~macna...

Ubuntu14.04 libboost_program_options.so.1.54.0: cannot open shared object file: No such file or directory

 macname@ubuntu:~/Desktop$roslaunchblackrospack:errorwhileloadingsharedlibraries:libboost_program_options.so.1.54.0:cannotopensharedobjectfile:Nosuchfileor...

Ubuntu14.04 ,libboost_filesystem.so.1.54.0: cannot open shared object file: No such file or directory

 macname@ubuntu:/opt$roslaunchblarospack:errorwhileloadingsharedlibraries:libboost_filesystem.so.1.54.0:cannotopensharedobjectfile:NosuchfileordirectoryTra...

ubuntu14.04, libtinyxml.so.2.6.2: cannot open shared object file: No such file or directory

 打包/opt/ros打包项目文件install 到一台没有安装ros环境的机器上启动项目sourceros/indigo/setup.bashsourceinstall/setup.bashmacname@ubuntu:~/Desktop$roslaunchblackrospack:errorwh...
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