Shiny app works fine locally but gets disconnected from the server with following error:
I have installed and loaded the library rgdal, but still keep on getting the error.
I'm guessing when it works locally you're running it on windows?
What does ld /usr/local/lib/R/site-library/rgdal/libs/rgdal.so return?
The error message is telling you that a shared object that the rgdal needs is missing.
This object should have been linked at install time and the install should have failed if it didn't exist (assuming it was installed through R).
At a guess, I'd say you're missing a system dependency, which is something like libgdal-dev or libgdal-devel, depending on your distro.
Based on the error, it looks like you may not have uploaded your data files when you uploaded your app to shiny. Click File > Publish and make sure all of the files, including your app.R (and/or ui & server files) AND your data files are selected.
Or, do you setwd() at the beginning of your code? If so, delete that line and try again.
Related
I've checked the other questions and this case doesn't seem to be covered. I'm running Ubuntu in WSL on my windows machine and I'm trying to run GNATStudio, any time I attempt to run the program either via Alire or by calling it I receive the following error.
error while loading shared libraries: libxcb-shm.so.0: cannot open shared object file: No such file or directory
I've already done the basics, and verified I have the correct file installed. Calling apt-file find produces the following.
root#DESKTOP-F319G5G:/opt# apt-file find libxcb-shm.so.0
libxcb-shm0: /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0
libxcb-shm0: /usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0
I've confirmed the location is in my path, as well and have restarted a few times. I'm really not too sure what my next steps should be. Any help is much appreciated!
The comment by #Bib solves this question: "install the libxcb-shm0-dev package."
I've been looking through other SO posts and I've seen that people had a similar problem to mine before. However, in my case when I load my RData workspace in RStudio it works just fine. However, when I try to load it in the server I get the following error:
Error in load(file = "/home/ubuntu/myfile.RData") :
bad restore file magic number (file may be corrupted) -- no data loaded
In addition: Warning message:
file ‘myfile.RData’ has magic number 'RDX3'
Use of save versions prior to 2 is deprecated
I've loaded similar RData files in the server before and it always worked fine. The same file is loaded without any problems in RStudio as I said, but somehow the server doesn't like it
Did you update R in your computer recently? If you did, from R 3.5.0, RData are saved using version 3 by default (RDX3). If you have an earlier version of R in your server, you probably need to save your data using the right version for your server (updating R in your server is another option). Please check the option version in the help of the save command to learn how to do that.
Attempting to use the mread function to open a cpp file through R. However, when I run the script I get the following:
setwd("C:/Users/Gustavo/Documents/R/page-2018-mrgsolve-master/model")
getwd()
#> [1] "C:/Users/Gustavo/Documents/R/page-2018-mrgsolve-master/model"
library(mrgsolve)
mod <- mread("simple", "model")
#> Error: project directory 'model' must exist and be readable.
Obviously I am setting the directory to "model" itself. So why isn't R able to read it? Any help would be appreciated as I am still learning R and want to learn the mrgsolve package as well.
Additional info: R version 3.4.4. Rtools version 3.4.0. Rstudio version 1.1.463.
An adaptation to the email I sent my colleagues that were assisting me with a similar issue:
To review, I was unable to open any files through RStudio because RStudio returned error messages indicating either that the file itself or the work directory did not exist. I've done multiple installations of different versions of R, RStudio, and Rtools in an attempt to resolve the issue. I also moved the locations of files and programs of interest and changed the work directory to see if that made a difference. Unfortunately, when RStudio is first initiated on a computer, it establishes a "hidden directory" folder that retains the settings of the program when it was first initiated. However, by deleting this folder, RStudio was wiped and I was able to regain control of where files would be stored and read as desired (more on this in the following link: https://support.rstudio.com/hc/en-us/articles/200534577-Resetting-RStudio-Desktop-s-State). A combination of this and forcing Rtools to the front of the 'path' also allowed me to resolve 'status 127' errors that I was receiving as well.
Unfortunately, this is the result of a more personal issue between the initial settings that RStudio took to my computer and my attempt to manipulate where RStudio should read files which I guess were discordant of one another? Regardless, it seems that I would need to be more cognizant of how RStudio establishes a folder which retains its initial settings.
I've been looking through other SO posts and I've seen that people had a similar problem to mine before. However, in my case when I load my RData workspace in RStudio it works just fine. However, when I try to load it in the server I get the following error:
Error in load(file = "/home/ubuntu/myfile.RData") :
bad restore file magic number (file may be corrupted) -- no data loaded
In addition: Warning message:
file ‘myfile.RData’ has magic number 'RDX3'
Use of save versions prior to 2 is deprecated
I've loaded similar RData files in the server before and it always worked fine. The same file is loaded without any problems in RStudio as I said, but somehow the server doesn't like it
Did you update R in your computer recently? If you did, from R 3.5.0, RData are saved using version 3 by default (RDX3). If you have an earlier version of R in your server, you probably need to save your data using the right version for your server (updating R in your server is another option). Please check the option version in the help of the save command to learn how to do that.
I have developed a solution using R and want to transfer it to the production server (CentOS 7) which has no Internet connection to install packages. To facilitate installation of packages, I used packrat to bundle the packages I used in my R script to the project.
Using packrat::bundle(), I have created a tar file of the project and moved the file to the server and untar the zip file.
According to a post in Blogger, once I open the project, When R is started from that directory, Packrat will do its magic and make sure the software environment is the same as on the source machine.
However, when I open the project in Server (using R-Studio Server 0.99), nothing happens and it throws error of unknown packages.
When manually execute the "packarat/init.R" file below error is thrown
Error in ensurePackageSymlink(source, target) :
Target '/home/R_Projects/prjName/packrat/lib-R/base' already exists and is not a symlink
Well, I found the problem and solve it. The symlink error is related to centOS (it is not related to R). I just simply removed all the folders inside the
/home/R_Projects/prjName/packrat/lib-R
Because these folder exist, the packrat is unable to create symlink with the same name inside the lib-R folder. If I remove them, it will create a link (shortcut) to the actual folder where the r package is located.
Hope it helps future readers.