我遇到了在OS X上安装RMySQL
软件包的问题。软件包安装似乎有效,但是在测试软件包加载时,它总是会失败:
* installing *source* package ‘RMySQL’ ... . .(omitted for brevity. see the gist linked below for the full installation log) . ** testing if installed package can be loaded Error : .onLoad failed in loadNamespace() for 'RMySQL', details: call: dyn.load(file, DLLpath = DLLpath, ...) error: unable to load shared object '/Library/Frameworks/R.framework/Versions/2.15/Resources/library/RMySQL/libs/i386/RMySQL.so': dlopen(/Library/Frameworks/R.framework/Versions/2.15/Resources/library/RMySQL/libs/i386/RMySQL.so, 6): Symbol not found: _mysql_affected_rows Referenced from: /Library/Frameworks/R.framework/Versions/2.15/Resources/library/RMySQL/libs/i386/RMySQL.so Expected in: flat namespace in /Library/Frameworks/R.framework/Versions/2.15/Resources/library/RMySQL/libs/i386/RMySQL.so Error: loading failed Execution halted ERROR: loading failed * removing ‘/Library/Frameworks/R.framework/Versions/2.15/Resources/library/RMySQL’
可在此gist上找到完整的安装日志。
这似乎与在32位与64位模式下运行R有关。我已经通读并尝试了其中的所有内容无济于事:
系统信息:
答案 0 :(得分:3)
在2月的R-sig-Mac列表中查看Simon Urbanek的这份备忘录:
https://stat.ethz.ch/pipermail/r-sig-mac/2013-February/009967.html
“啊,等等 - 你在Mountain Lion上,你可能已经安装了R的32位默认值,因为当时支持的64位系统列表中省略了10.8 - 尝试安装最新的R 2.15.3 RC从 http://r.research.att.com/“
您还应该确保RMySQL版本适用于版本2.15,因为CRAN现在将提供一个期望R 3.0.0正在运行的版本。实际上这应该不是问题,因为RMySQL_0.9-3位于UCB CRAN镜像的2.15二进制中继中:http://cran.cnr.berkeley.edu/bin/macosx/leopard/contrib/2.15/RMySQL_0.9-3.tgz
答案 1 :(得分:3)
我刚刚找到了解决这个问题的方法。我的R版本是
> R.version _
platform x86_64-apple-darwin12.4.0
arch x86_64
os darwin12.4.0
system x86_64, darwin12.4.0
status
major 3
minor 0.1
year 2013
month 05
day 16
svn rev 62743
language R
version.string R version 3.0.1 (2013-05-16)
nickname Good Sport
我需要做的就是将libmysqlclient lib复制到R lib目录。