[R] unable to access index for repository...

Uwe Ligges ||gge@ @end|ng |rom @t@t|@t|k@tu-dortmund@de
Mon Oct 5 10:58:10 CEST 2020


Then you'd rather need

install.packages("aod",repos='https://cran-archive.r-project.org')

or use the contrib.url argument.

Best,
Uwe Ligges


On 05.10.2020 10:47, Steven Yen wrote:
> Thanks for the help. I do update to the latest R-4.0.2. As I said, for 
> reasons that's hard to explain, some of my tasks are better handled with 
> an older version of R, in this case R-3.0.3. Please just help me install 
> packages successfully with this older version of R.
> 
> I ran the following line but obviously was not getting it across.
> 
> =====
> 
>> install.packages("aod",repos='https://cran-archive.r-project.org/bin/windows/contrib/3.0/') Warning in 
> install.packages : unable to access index for repository 
> http://cran.rstudio.com/bin/windows/contrib/3.0 Warning in 
> install.packages : unable to access index for repository 
> https://cran-archive.r-project.org/bin/windows/contrib/3.0/bin/windows/contrib/3.0 
> Warning in install.packages : package ‘aod’ is not available (for R 
> version 3.0.3)
> 
> On 2020/10/5 下午 04:12, Uwe Ligges wrote:
>> From
>>
>> ../ReadMe
>> in the mentioned web resource:
>>
>> "Packages for R >= 1.7.0 and R < 3.2.0 are available from
>> https://cran-archive.r-project.org/bin/windows/contrib/"
>>
>> We do not hold binaries of several year old versions of R on CRAN.
>>
>> Note that R 3.0.0 is 7 years old. You shoudl realy consider to update 
>> to 4.0.2.
>>
>> Best,
>> Uwe Ligges
>>
>>
>>
>>
>> On 05.10.2020 09:56, Steven Yen wrote:
>>> I had to install/use an older version of (R-3.0.3) for a reason. While
>>> installing a package from CRAN (either in RStudio or R), I received the
>>> following warning message saying unable to access index for repository
>>> http://cran.rstudio.com/bin/windows/contrib/3.0. See message below. In
>>> this case, I tried to install "aod". The install nevertheless went
>>> through, as confirmed by the library statement (I did not try to use
>>> it). Any idea? Thank you.
>>>
>>> =====
>>>
>>> Warning: unable to access index for repository
>>> http://cran.rstudio.com/bin/windows/contrib/3.0 Warning: unable to
>>> access index for repository
>>> http://cran.rstudio.com/bin/windows/contrib/3.0 >
>>> install.packages("aod") Warning in install.packages : unable to access
>>> index for repository http://cran.rstudio.com/bin/windows/contrib/3.0
>>> Warning in install.packages : unable to access index for repository
>>> http://cran.rstudio.com/bin/windows/contrib/3.0 package ‘aod’ is
>>> available as a source package but not as a binary Warning in
>>> install.packages : package ‘aod’ is not available (for R version 3.0.3)
>>>   > library(aod)
>>>
>>>
>>>     [[alternative HTML version deleted]]
>>>
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