I want to use R on Qlik, and I began by following this process : https://community.qlik.com/servlet/JiveServlet/previewBody/18785-102-1-25264/Installing%20R%20with%20Qlik%20Sense.pdf
I installed R (with the specific install path, but R-3.4.4), and Qlik (September 2018 version).
Then I followed the different steps, until the 6th.
There, when I run Rserve.exe, I get an error : "Fatal error: unable to open the base package".
However I checked that the base package is well installed.
I didn't find where does it come from.
-> Is it a problem of R or Qlik version ?
-> Or is there someting else to take care of ?
Thank you very much for your advice !
I finally found the answer :
creating an environment variable
calling it R_HOME
value : the path to R (C:\R\R-3.4.4)
Related
I have installed h2o package(in R from RStudio console). Post h2o.init() I am trying to use the built in function upload_model()/upload_mojo() but I am getting following error.
h2o.upload_mojo()
Error in h2o.upload_mojo() : could not find function "h2o.upload_mojo"
h2o.upload_model()
Error in h2o.upload_model() : could not find function "h2o.upload_model"
I found work around to resolve this issue. Please find below the steps I followed:
Remove the package using: remove.packages("h2o")
Quit the current session and launch the new one.
Move out lock file for h2o from path where package was installed mostly under R with file name like - 00LOCK-h2o
Install new/latest version of package via RStudio console using install.packages()
It should now resolve this issue.
installed.packages() command in R lists your installed packages. Mine was working for almost a year and then this command randomly started throwing an error. As this is a built-in command, I am not even sure how to "reinstall" it or address this. Any ideas how to fix the error and get the command working again?
> installed.packages()
Error in gzfile(file, mode) : cannot open the connection
In addition: Warning message:
In gzfile(file, mode) :
cannot open compressed file `'C:\Users\Mitch\AppData\Local\Temp\Rtmp6Dawpa/libloc_190_4464fd2b.rds', probable reason 'No such file or directory'`
One suggestion on here involved this in combination:
.libPaths()
installed.packages(lib.loc = 'my path')
The results of this produced yet another error as shown here. Looks like an issue with the installed file still but how to address is the question:
> installed.packages(lib.loc = 'C:/ProgramFilesCoders/R/R-3.3.2/library')
Error in gzfile(file, mode) : cannot open the connection
In addition: Warning message:
In gzfile(file, mode) :
cannot open compressed file 'C:\Users\Mitch\AppData\Local\Temp\Rtmp6Dawpa/libloc_190_4464fd2b.rds', probable reason 'No such file or directory'
>
That is odd.
What version of R are you running, standard R or Microsoft R? And did you recently update?
If you did recently update, perhaps your packages did not get copied over, hence the 'No such file or directory' statement.
If you haven't updated, I would install a newer version and see if it fixes the issue.
If your uncertain, you can always use the updateR function to check if you have the latest version and choose to install it or not.
library(installr)
updateR()
Good luck,
I think the issue lies in terms of the where the function is looking for the package information. installed.packages() needs an argument lib.loc.
From official documentation
lib.loc character vector describing the location of R library trees to search through
Looks like the function for some reason is looking in AppData\Local\Temp which is the download location and not the installed location.
Without looking at your R_Home and .libPaths() is difficult to nail down where the problem is, however running .libPaths() should give you one or more paths as shown in the below example. None of these should be temp locations.
>.libPaths()
[1] "C:/Users/UserName/Documents/R/win-library/3.4"
[2] "C:/Program Files/R/R-3.4.0/library"
If not, you can set the path within the .libPaths("your path") or pass the path of the library as part of installed.packages(lib.loc = 'your path') and try again.
Sometimes the most simple obvious solution is what works:
I closed my RStudio environment saving it to .RData
I re-opened RStudio and tried the command again
it worked
For the future, some good ideas got posted on here before I thought to try the above. Here are the suggestions that others included in case the above does not work if this problem is encountered by anyone in the future:
Use .libPaths() to find out proper path where this is installed, and then re-run the command with the path included in it like so: installed.packages(lib.loc = 'your path')
Try debugging it with: debug(installed.packages); Expectation is that we will likely find something wrong with .readPkgDesc(lib, fields) while stepping through debug. This was not tried yet so you may encounter things not written up here when you do try it.
Try Updating R in case it is out of date with these commands: library(installr) and updateR().
Im facing some difficulties while using Tesseract.
First let me present my actual configuration.
Im working on Windows and have this Tesseract version :
tesseract 3.05.00dev
leptonica-1.73
libgif 4.1.6(?) : libjpeg 8d (libjpeg-turbo 1.4.2) : lib
.0.6 : zlib 1.2.8 : libwebp 0.4.3 : libopenjp2 2.1.0
I have added every languages available with the msi installation.
Unfortunately, i am not able to run a conversion with dutch, italian, spanish, and french languages.
Im using the cmd to execute tesseract.
To show you what kind of error i keep having, im going to use a pretty simple example.
When I run that :
tesseract MainMenu.tif result -l deu
I keep having this error endlessly :
Params model::Incomplete line
That is pretty weird and i am unable to spot whats going wrong.
I can convert in any other languages without any trouble.
I have tried to dl the latest .traineddata from github but it doesnt change anyhing.
I have uninstalled and re-installed the soft too.
Using tesseract --list-langs i am able to see deu, fra, spa and ita.
I have been reading the source code from Github, that makes this error message pop. But I cant find what I am doing wrong.
As I said it works just fine with any languages, except those 4.
Hopefully you will have a lead on this one
I got this problem too.
In my case it is because of using the wrong version of trained data file.
I have use https://github.com/tesseract-ocr/tessdata (master).
This is for tesseract 4 (for this date 15/1/2017).
The solution is use this https://github.com/tesseract-ocr/tessdata/tree/3.04.00.
hope this helps.
I would like to build a simple webserver using Rook, however I am having strange errors when trying it in R-Studio:
The code
library(Rook)
s <- Rhttpd$new()
s$start()
print(s)
returns the rather useless error
"Error in listenPort > 0 :
comparison (6) is possible only for atomic and list types".
When trying the same code in a simple R-Console,everything works - so I would like to understand why that happens and how I can fix it.
RStudio is Version 0.99.484 and R is R 3.2.2
I've experienced same thing.
TLDR: This pull request solves the problem: https://github.com/jeffreyhorner/Rook/pull/31
RStudio is treated in different way and Rook port is same as tools:::httpdPort value. The problem is that in current Rook master tools:::httpdPort is assigned directly. It's a function that's why we need to evaluate it first.
If you want to have it solved right now, without waiting for merge into master: install devtools and load package from my fork #github.
install.packages("devtools")
library(devtools)
install_github("filipstachura/Rook")
I don't know what is going on, everything was working great but suddenly I started to have this error message on the documentation:
Error in fetch(key) : lazy-load database '......descopl.rdb' is
corrupt
I removed almost all my code and build again then publish to Github, but when I use the other laptop to download the package, the package is being downloaded and loaded but I can't call any of the functions, and the documentation states that error.
I don't know what caused the problem, I am using roxygen to generate the documentation.
https://github.com/WilliamKinaan/descopl
It seems that the error arises when the package cannot be decompressed by R (as #rawr established, it is corrupt). This solutions have worked for me:
1) Check for possible errors in the creation of the .Rdb files
2) Try restarting your R session (e.g. .rs.restartR() if in RStudio)
3) The package might have been installed in your computer (even though it does not work). Remove it using ?remove.packages()
I have had this problem with roxygen2 as well. Couldn't see any problem with any of my functions. In the end deleting the .rdb file and then getting roxygen2 to rebuild it seemed to solve the problem.
I think the explanation for what is causing this is here.
It's related to devtools.
Per #Zfunk
cd ~/Rlibs/descopl/help
rm *.rdb
Restart R. Look at the help for the package again. Fixed!
I received this error after re-installing a library whilst another R session was running.
Simply restarting the existing R session(s) solved for me (i.e. running .rs.restartR() to restart the sessions)
If you are using R-studio:
1) ctrl+shift+f10 to restart r session
2) tools -> Check for package updates -> update all packages
3) library(ggmap)
Problem is solved.
Basically all answers require restarting R to resolve the issue, but I found myself in an environment where I really didn't want to restart R.
I am posting here a somewhat hack-ish solution suggested by Jim Hester in a bug report about the lazy-load corruption issue.
The gist of it is that the package may have some vestigial S3 methods listed in session's .__S3MethodsTable__. environment. I don't have a very systematic way of identifying which S3 methods in that environment come from where, but I think a good place to start is the print methods, and looking for S3method registrations in the package's NAMESPACE.
You can then remove those S3 methods from the .__S3MethodsTable__. environment and try again, e.g.
rm(list="print.object", envir = get(".__S3MethodsTable__.", envir = baseenv()))
You may also need to unload some DLLs if some new messages come up like
no such symbol glue_ in package /usr/local/lib/R/site-library/glue/libs/glue.so
You can check getLoadedDLLs() to see which such files are loaded in your session. In the case of glue here, the following resolved the issue:
library.dynam.unload('glue', '/usr/local/lib/R/site-library/glue')
I got this error on RStudio on mac OS - updating all the packages and restarting r session did the trick.