Strange R message: Persistent UI failed to open file - r

I have just updated my R to version 3.1.1 on my Mac machine, and since then have started getting this strange message when running analyses.
Persistent UI failed to open file ..../org.R-project.R.savedState/window_2.data: No such file or directory (2)
Where I have written the .... there is the rest of the file directory, but I didn't think it necessary to add in.
There does not appear to be anything specific that sets off this error. I am usually running a number of R windows at once - which are running difference analyses (around 6) and the error appears across all windows at roughly the same time I think, I am not usually watching the analyses tick over.
It doesn't kill the analyses. And I haven't found it causing any problems.
I am just curious what it means, and how I should fix it?
Thanks,
Sam

This is pretty old, but I just ran in to the same problem.
You see this message because R does not have permission to change your ~/Library/Shared Application State directory.
If you want to change it, 1 just navigate to the folder, 2 right click it, and 3 uncheck the lock checkbox or change the permissions to that folder.
I don't mind the R error message because I hate OSX writing all the current application states to that folder.

Related

Can no longer save R/RStudio scripts on OneDrive - Windows

R version: 4.0.3
RStudio version: 1.3
Windows 10, 1909
At my work I have to use OneDrive to store all my files and R scripts. This has worked fine up until recently. Now I get an error message when trying to save or modify an R script. I can create a new script and save it once, but if I try to make changes and save it again the error prevents me from doing so.
The error message in RStudio is:
"The create operation failed because the name contained at least one mount point which resolves to a volume to which the specified device object is not attached"
Not the most helpful error message.
The same behavior happens in R itself, but the error message just says it cannot save.
I have seen some talk online about this being related to that latest Windows 10 version (1909), but I started to experience the issue about 2 weeks before my computer updated to 1909. Besides, my work will not allow a roll back to the previous version.
Microsoft's OneDrive team failed to provide any help on this because they see it as an error on the R/RStudio side.
Anyone else experiencing this? Any solution?

iExpress error: "Unable to end update of resources"

I've been successfully using iExpress for years. Now, when generating the same .exe files that I always generate, iExpress is now giving me the error: Unable to end update of resources.
This error comes at the very end of the process. I see the Create Package screen and the text "Creating the package..." Then the error occurs. In the file folder, I'll see a file like: ~MyFileName.CAB which would normally be deleted at the end of running iExpress.
I've tried deleting the .CAB file and rerunning iExpress again (many times). I tried rebooting. I tried running iExpress with different applications. I tried searching the web and Stack Overflow. I'm using the same Windows user account I normally use. Desperate for help as I'm unable to release my applications. Thank you!!!
The problem is resolved, though not exactly sure how. I did have another user run iExpress on my machine as that other user. (Ie, right-click on the iExpress executable and run as the other user.) That user was able to run iExpress without the error I reported above. And after that, iExpress started magically working for me too.
Could running as the other user have caused Windows to clear out some file that had been corrupted? Something else? I don't know. I just thought I would write what happened in case this can help someone else in the future.
FURTHER UPDATE
The problem popped up again. I finally figured out that if I closed File Explorer before running iExpress, the error never happens. There's some bug with Windows 10 and/or iExpress where having the folder open can interfere with the final step that iExpress does.
Of interest: It's not a consistent bug. Sometimes iExpress finished and sometimes I got the above error when File Explorer and the folder in question was open.

R studio not responding

My RStudio is opening multiple processes(opening R Studio in different windows) when I open just one. I am not able to open any project. It becomes unresponsive. I tried using in compatibility mode, running as admin and also uninstalled. But still,(here's the image) the same problem persists. Can someone please help me?
Before you reinstall everything, which may take a lot of time, it is worth removing application data, which is a cache R keeps of last sessions etc. It involves settings such as information from last session, etc which RStudio tries to reopen every time you open it.
For app data, look under your user folder which must be somewhere like
c:\Users\<your_user_here\AppData\Local
c:\Users\<your_user_here\AppData\Local\LocalLow
c:\Users\<your_user_here\AppData\Roaming
Delete every subfolder called R, RStudio-Desktop or RStudio under these folders. Don't worry, you won't lose your source program files and projects. It may help you recover everything without having to start over from scratch.

ShinyApp : Connection Reset By Peer

The shinyapp I built earlier was running fine in my old laptop. Recently I got a new laptop with Windows10. After setting up everything, I tried to run the app but it the browser opens and closes immediately with the error :
Listening on http://127.0.0.1:5004
ERROR: [on_request_read] connection reset by peer
I have also set chrome as default browser....
I deployed this app in shinyapps.io it is working fine there.
I tried few more simple apps in Rstudio but the same issue coming. Looks like the issue is more related to some setting in Windows10. Can someone help me please.
Thanks in Advance.....
Without details on the specific code, I'd share my personal experience with the same error for your reference. In my case, I used RStudio to create a shiny app that save data to a local directory on my computer, while I told R to output files to directory "response", I hadn't created such directory under the working directory so came the error. Simply creating the sub directory named "response" solve this right away. Or for moving your project files to different places in the future, you can just check whether the folder exists, if not, create one shall save you a lot of time.

RStudio project "cannot find the file specified" on R session restart

I am getting strange and annoying behavior in one (yes, only one) of my RStudio projects. Whenever I restart the R session within this project, I can no longer save any of the files, and when I try to (or RStudio tries to automatically) I get a popup error saying "The system cannot find the file specified" and I have to reopen the project and all of the R scripts.
I looked at the log file, and I see a lot of the following error:
07 Oct 2015 00:52:05 [rsession-Mark] ERROR system error 5 (Access is denied) [path=C:/Users/Mark/GoogleDrive/Research/CEQUAL_event/.Rproj.user/5E5F98D9/sdb/s-26E44539/lock_file];
OCCURRED AT: bool rstudio::core::FilePath::exists() const C:\Users\Administrator\rstudio\src\cpp\core\FilePath.cpp:308;
LOGGED FROM: bool rstudio::core::FilePath::exists() const C:\Users\Administrator\rstudio\src\cpp\core\FilePath.cpp:308
It looks like the problem may be in the .Rproj.user folder. So I deleted that and let RStudio regenerate it, but the behavior started right back up again.
I am using Windows 7, RStudio version 0.99.441, and R version 3.2.2.
I think #Jack Wasey is right: Google drive locks files during sync. This causes many issues with other programs as well. There are alternatives from companies that do file syncing for a living, such as dropbox, whose clients don't lock files. With google drive you only have the option to use selective sync and exclude every .Rproj.user folder. Once the RStudio's database is corrupted, moving the project out of the Google drive folder won't be enough - you will need to delete/rename it to have RStudio fix its database.
Summary:
Copy contents from all unsaved files to a temp file outside of RStudio (while clicking away the error message every other second)
Quit Rstudio
Pause Google drive syncing
Rename (or move/delete) the hidden .Rproj.user folder in your project
Reopen the project in Rstudio
Exclude the new .Rproj.user folder from syncing with Google drive (Preferences -> sync only these folders)
Remember that Google drive is free / Become an awesome google developer and fix the issue once and for all
May not be related but might be helpful to someone else. I was getting the same error (over and over) and finally realized that I had an R session open from days ago, that had eventually gotten stuck. It was running in the background with a "Fatal Error" message waiting for me to click OK. When I closed that session everything started working again.
This was happening to me as well, but curiously only when I was using Project files (.Rproj - not stand alone R scripts). It was driving me crazy.
I found that buried in the settings (Tools -> Global Options -> Git/SVN) there was a setting "Enable Version Control Interface for RStudio Projects). I guess I had turned that option on when I was messing with my settings and then forgot about it since I don't normally use project files.
What worked for me was I noticed DescTools package I installed caused it, though it served the purpose I installed it - fetched me mode value without going through mode functions. I then deleted the line I got the install.package, re-saved the project (ctrl S) and I could knit it.
Bottom line, read the error message soon as the box pops up, it's going to give you a hint of what line is causing the issue.
I hope this works. Enjoy

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