I tried to upload a csv file, but while I tried it, there shows that "Class 'Maatwebsite\Excel\Facades\Excel' not found". How can I solve this?
Have you tried a composer dumpautoload;composer install?
Related
I am facing an error. I am very new to javafx.
when i created a new javafx project in intellij , the import statements and every "javafx" word was red as the ide didnt recognised the word as a keyword , i got an issue that said
"cannot resolve symbol javafx", "javafx.Application does not exist".
i searched on youtube and followed the instructions of this guy:
https://www.youtube.com/watch?v=b60Fl2WLaQY
All errors got solved but when i tried to run the pre-written code which intellij produces , i got the following error:
"java: cannot access javafx.application.Application
bad class file: /C:/Users/priyanshu nautiyal/javafx-sdk-
11.0.2/lib/javafx.graphics.jar!/javafx/application/Application.class
class file has wrong version 54.0, should be 51.0
Please remove or make sure it appears in the correct subdirectory of the classpath."
does someone know how to solve it?
I built my own package in R and it works very well. When I hit build and load in Rstudio, there are no errors at all. Everything is fine. However, When I run my function that include .c file I got this error:
Error in .C("SimulateRVine", as.integer(N), as.integer(n), as.integer(w1), : "SimulateRVine" not available for .C() for package "Vicop"!!
What is the problem and how can I solve it?
This is my own package so I rebuild it many times but nothing happen. When I try to use useDynLib("Vicop") and then rebuild my package I got an error. I think this is my problem but do not know how to solve it.
After a hard search as a beginner to c language I see the problem.
I face this issue because I did not register my function. That is for each .c function I must register it in a file which is called int.c
That solve my problem.
I am still pretty new to R, but couldn't seem to find solution to my question.
It's quite simple:
I have a .rmd file written and ready to run, but instead of openning it from R or Rstudio, Is there a way I can knit it automatically without opening that file?
Please kindly guide me how should I do this, screenshot would be much appreciated!!
Thanks in advance!!
Added: So I took nrussell's advice and tried run that on my windows command line, but I am seeing "The filename, directory name, or volumn label syntax is incorrect". Thoughts? Thank you all for your comments!
did a cd RMD's path , then used #nrussell's code. and it worked.
Somehow, I couldn't use specified RMD file path such as C:\XXX\XXXX.rmd, but if I cd to there first, it worked.
From what I can gather there is a well documented issue with uploading Rpubs to RStudio. The solution is to create a .Rprofile and with an additional line:
options(rpubs.upload.method = "internal")
and then put the .Rprofile file in your working directory, and restart the program. My issue is that when I attempt this and start up RStudio I am presented with the error:
Error in assign(".popath", popath, .BaseNamespaceEnv) :
cannot change value of locked binding for '.popath'
Can anyone suggest what I may be doing wrong? What have I missed?
The solution is provided by a careful rereading of http://rstudio-pubs-static.s3.amazonaws.com/25030_8e9c9ffc3b3c423d9381d81543423502.html
"Put in options(rpubs.upload.method = “internal”) and no other text at all". Meaning that this line of code is the only code present in the .Rprofile file.
Previously I had been adding the line to a copy of the rest of the Rprofile text. The unnecessary code was the culprit.
I am just starting to explore the rmarkdown package. I don't use Rstudio. I use the default R environment. What I did was as follows.
I created a new R document.
Started typing few lines in rmarkdown format.
Saved the file with Rmd extension.
I saved the file in the working directory.
I installed the pandoc using the pkg file.
I installed 'rmarkdown' package. Loaded the package.
Used the following command to render the Rmd file.
rmarkdown::render("Untitled.Rmd")
I get the following error.
Error in tools::file_path_as_absolute(input) : file 'Untitled.Rmd'
does not exist
I tried all the possible ways such as giving the exact path instead of filename etc. But nothing worked out. I googled the error message and found that none had similar error. Can someone help me with this. What I am missing. What the error message mean?
Most of the time the error file not found is either a type error or a real missing file (as in your case, the real one is named in another way).
In order to discard those possibilities:
Copy the fullpath from your filebrowser.
Make sure the file exists, inside R you could type:
file.exists("/fullpath/to/file")
If that return TRUE and the error persists, then you suspect another thing is going on.