Friday 19 June 2020

Known GCDkit 6.0 installation problems and how to solve them

We have been  receiving reports recently of failed installations on both Mac and Windows. If you have the same problem, please:

  • Check once more all the instructions at
  • In particular, make sure that you install R first, in appropriate version (that is 3.6.0 for GCDkit  6.0)
  • If you are behind a proxy, select Internet2  option during Custom R installation
  • Check that you are online before installing the supporting libraries
On Windows:
  • For installation, run R with admin privileges
  • If you receive a message saying that RODBC is not available for R 3.6.0:
    [1] Download the zipped version of the RODBC library from
    [2] Go to RGUI menu Packages>Install package(s) from local zip files... and browse for this downloaded file on your disc. DO NOT unzip it beforehand. 
  • In case you are missing any other R libraries, their appropriate zipped version can be found at, downloaded and installed analogously to the case of RODBC.
We do apologise for the inconvenience - the fact that  RODBC library is not correctly configured on the CRAN server is unfortunately beyond our control.

I am pleased to announce that we are just finishing a GCDkit version 6.1 that should fix a few known bugs and feature, among other things, also offline installer.



  1. Thank you so much for all of your efforts to maintain this really useful software. I enjoy using it a lot.

    There is one question. I have problem with installing the GCDkit to a new laptop using @install.r file.
    I'm now trying to install all of the necessary R packages manually, but I cannot find package “XML” in the CRAN server:

    I’ve tried installing the
    but the GCDkit installer did not accept them as proper XML package.

    Could you let me know which package to use?

    Thanks much for your help in advance.

    1. Hello,
      careful, R comes from Linux and Linux is case-sensitive.
      You should use

  2. GCD Kit latest version 6.1 with Console R.4.1.3 is not working on my laptop although i am having a latest laptop (HP-Spectre x 360) with windows 11. After opening the GCD official website and downloading the latest GCDkit version with latest R console 4.1.3 and installing the GCD kit as per mentioned on your website i installed the kit successfully on my laptop but when i click on the GCD kit shortcut created on desktop it will not fully open the RGui ( now showing "load data"option) as well as its also not showing the "hammer icon" on the shortcut created on desktop. i have so many times installed and un-installed it but its not working. Kindly sort out my promblem as soon as possible. thanks.

  3. Dear Anonymous, could you please 1) Open the R Console and 2) type therein library("GCDkit")? What happens? V.

  4. Hello, I cannot install version 6.1 of this software on Windows 10. It gives this error during installation(installation of required support libararies RODBC,R2HTML,SP,XMl,rgdal,tkrplot,curl failed

    1. This looks as if you did not have Internet access or were hiding behind (in R incorrectly configured) proxy while installing. I suggest that you try Offline installation from Good luck, V.