最近在hdfs写文件的时候发现一个问题,create写入正常,append写入报错,每次都能重现,代码示例如下: FileSystem fs = FileSystem.get(conf); OutputStream out = fs.create(file); IOUtils.copyBytes(in, out, 4096, true); //正常 out = fs.append(file); IOUtils.copyBytes(in, out, 4096, true); //报错 通过hdfs…

$rospack depends1 beginner_tutorials 报错:Erros:could notn call python function 'rosdep2.rospack.init_rospack_interface' 有人说要rosdep update一下, $rosdep update 报错:Permission denied : '/home/xy/.ros/rosdep/sources.cache/index' 想起来之前说什么东西没权限,然后chmod乱改一气,可能那…

在文件中 package.path = '/usr/local/share/lua/5.1/?.lua;/usr/local/openresty/lualib/resty/?.lua;' package.cpath = '/usr/local/lib/lua/5.1/?.so;' 执行local mysql = require "mysql" --正确local mysql = require "resty.mysql" --报错 去掉 package.path =…

Error: error getting chaincode bytes: failed to calculate dependencies: incomplete package: github.com/hyperledger/fabric-contract-api-go/contractapi !!!!!!!!!!!!!!! Chaincode packaging on peer0.org1 has failed !!!!!!!!!!!!!!!! ========= ERROR !!! FA…

maven配置的环境变量有问题: 用最新的maven替换系统默认的setting.xml文件即可…

https://blog.csdn.net/myzh215219/article/details/90314345 点击图上的DRIVER,然后点击GO TO DRIVER,之后更改合适的驱动. 我的情况是MySQL版本为5.6.29,工具自动调用的MYSQL CONNECTOR/J 8.0,而且class使用的是com.mysql.jc.jdbc.Driver,改成5.1.47,class换为com.mysql.jdbc.Driver就能成功连接了…

转自: <pycharm安装 package报错:module 'pip' has no attribute 'main'> https://www.cnblogs.com/Fordestiny/p/8901100.html 问题: 更新pip版本之后,Pycharm安装package时出现报错,如下: 解决方法: 找到PyCharm安装目录D:\Program Files (x86)\PyCharm Community Edition 2017.1.1\helpers\packaging_t…

很多用户在使用sumblime安装插件的时候,打开package control的install package会出现报错:There are no packages available for installation.如下图: 之所以会出现这种错误的原因是因为sublime中的包管理install package依赖一个channel_v3.json文件,而这个json文件默认每次打开package control都会从一个网址下载,而当网址未响应的时候(实事证明经常出问题),就会出现报错.…

1. 输入命令: conda create -n query-scorer-serving python=2.7 报错: Solving environment: failed CondaError: No writable package cache directories found in ('/data/conda/pkgs', '/opt/conda/pkgs')原因: 一般在服务器上没有写入的权限, 解决办法: 需要在前面加入sudo权限. 2. 输入命令:  sudo conda c…

今天在编译一个OpenWrt测试用例的时候出现报错 Package airfly_receiver is missing dependencies for the following libraries: libmediaplayer.so 此库文件是在lebo包裹中编译出来的,确认过已经编译成功,且在当前调用的Makefile中添加了DEPENDS字段包含了生成该库的包裹 DEPENDS:=+libcedarx +afapp +miracast2 +lebo 打开lebo包裹里的Makefil…