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vre:usorsupport:faq [2026/07/28 10:44] – margueritevre:usorsupport:faq [2026/10/22 13:03] (current) – marguerite
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 ====== Frequently Asked Questions ====== ====== Frequently Asked Questions ======
 +[hskb>] 
 +Index bovenaan pagina? 
 +[<hskb]
 If you have suggestions for our FAQ, please contact us at the <dcc@rug.nl>. If you have suggestions for our FAQ, please contact us at the <dcc@rug.nl>.
  
 ==== Working with R in the VRE ==== ==== Working with R in the VRE ====
 The VRE has no Internet connection, so a VRE user is not able to install R packages from the regular repositories. There are two possibilities to install R packages in the VRE:  The VRE has no Internet connection, so a VRE user is not able to install R packages from the regular repositories. There are two possibilities to install R packages in the VRE: 
-  - There is a trusted mirror of the CRAN that gets updated daily and is available on the VRE. The path to the mirror must be set by the user: http://rep001.research.usor.nl/ +  - There is a trusted mirror of the CRAN that gets updated daily and is available on the VRE. The path to the mirror is already set in the Global Options (http://rep001.research.usor.nl/ )
   - Data managers of Researcher+ can upload data to the VRE. If you upload the package to the group drive (G:\) all members of the study can install that R package.    - Data managers of Researcher+ can upload data to the VRE. If you upload the package to the group drive (G:\) all members of the study can install that R package. 
  
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 ==== Problems with the Citrix client or starting up the VRE ==== ==== Problems with the Citrix client or starting up the VRE ====
 +
 +=== Certificate errors ===
 +In the start of 2026 the Citrix connection to the VRE generated certificate errors, because the certificate was outdated. Please install the certificate that you are can download here.
 +
 +=== File has been moved ===
  
 We have seen that the VRE could not start properly and gave an error "file has been moved". This is after authentication. We solved the error by de-installing the Citrix Client and installing the client anew. But - and this is essential - install it from the dfh.usor.nl portal. The Citrix client from this portal is pre-configured with VRE settings We have seen that the VRE could not start properly and gave an error "file has been moved". This is after authentication. We solved the error by de-installing the Citrix Client and installing the client anew. But - and this is essential - install it from the dfh.usor.nl portal. The Citrix client from this portal is pre-configured with VRE settings