[R] Warning from installing packages in R3.6.1

[Duncan Murdoch]

On 15/09/2019 1:44 a.m., Steven Yen wrote:
> Can someone help me understand why Rtools is needed when installing a
> package from CRAN, and from a zipped file? What's the point?

Please don't just repeat your post when you've been asked for additional 
supporting information.

Duncan Murdoch

> 
> On 9/14/2019 10:29 PM, Steven Yen wrote:
>> Since updating to R3.6.1., I have received a WARNING message saying
>> Rtools is required.
>> I get the same message installing online from CRAN and from a .zip file.
>> It looked like installation still went through in both cases, BUT,
>>
>> Another student installed a .zip file and received the following error
>> message:
>>
>> Error in install.packages : invalid multibyte string at `<87><55>...
>>
>> do I have to live with the message?
>>
>> I hate to tell students to install Rtools, which they do not do much with.
>> Warning message is listed below. Thank you.
>> ---
>>
>>> Install.packages("aod")
>> WARNING: Rtools is required to build R packages but it is not
>> currently installed. Please download and install the appropriate
>> version of Rtools before proceeding:
>>
>> Package 'aod' successfully unpacked and MD5 sums checked.
>> -- 
>> syen using hqu.edu.cn
>