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Hi!

 

There are multiple tips on how to solve this issue. I think I have tried them all, but just to document and see if I have skipped some part.

Challenge: You get the error message when trying to run an RCaller:

2020-02-04 08:36:56|   0.6|  0.0|ERROR |RCaller_2 (InlineQueryFactory): Failed with exit code 1 when executing R script. Output was: Error in library("sqldf") : there is no package called 'sqldf'

 

Solution

1. Check if sqldf is installed correctly:

Do:

  1. Start cmd.bat / command line in "ADMINISTRATOR MODE"
  2. Navigate to where R is installed and the 32 or 64-bit R. Same version as your FME (I have 64-bit): C:\Program Files\R\R-3.6.1\bin\x64
  3. run R.exe
  4. Run and select your closes mirror
install.packages("sqldf")

The reply for my pat is:

> install.packages("sqldf")
Installing package into 'C:/Users/XXXX/Documents/R/win-library/3.6'
(as 'lib' is unspecified)
--- Please select a CRAN mirror for use in this session ---
trying URL 'https://cran.uib.no/bin/windows/contrib/3.6/sqldf_0.4-11.zip'
Content type 'application/zip' length 78436 bytes (76 KB)
downloaded 76 KB

package 'sqldf' successfully unpacked and MD5 sums checked

The downloaded binary packages are in
        C:\Users\XXX\AppData\Local\Temp\RtmpW60Obp\downloaded_packages
>

Now when I run

.libPaths()

The new package is NOT listed:

> .libPaths()
l1] "C:/Users/nosihg/Documents/R/win-library/3.6"
r2] "C:/Program Files/R/R-3.6.1/library"

So I am guessing the package does not get installed since it is not listed

 

I also tried the optional approach:

Optionally, you can place your R libraries in a shared resources folder. The location of this folder is set in Workbench under Tools > FME Options > Default Paths > Shared FME Folders.
In Windows, the R folder is located by default in Documents > FME > Plugins.
Additional modules dropped into the R folder will be picked up by FME.

 

0684Q00000ArCC2QAN.png

However not sure if they can be zipped or needs to be unzipped etc. And if they can be on a network folder or not.

0684Q00000ArC7AQAV.png

Using this commandline:

install.packages("sqldf,RSQLite,memoise,digest,chron,pkgconfig,raster",dependencies=TRUE, lib="C:/Program Files/R/R-3.6.2/library")

Seems to be better:

- Install library sqldf

- Install all dependendent libraries

- Use the system-wide folder to install them (and NOT the user library)

I did a fresh install of R from our IT-department. That might be missing some default packages it seems. And when FME complained about missing packages it did not seem to solve the issue to have dependencies=TRUE so I guess these 6 packages are "independent" of each other but needed to work.

Just a heads up for anyone else trying to use RCaller!

Does anyone have a working "Hello world" script of R in FME? A workspace that just runs to verify the installation is OK on my part? Similar to below (but its just giving: Failed with exit code 1 when executing R script. Output was: Error: package 'gsubfn' required by 'sqldf' could not be found)

 

Not sure if it is a syntax error, installation error, R-error or other error.... Seems to work fine in RStudio

 

> library(sqldf)

Loading required package: gsubfn
Loading required package: proto
Loading required package: RSQLite
Error: package or namespace load failed for ‘RSQLite’:
 package ‘rlang’ does not have a namespace
Error: package ‘RSQLite’ could not be loaded

Not sure whats happening here - but seems to be some issues with the underlying RSQLite

Googling the error does not give me much to go on...

Posting for visibility. The issue here is that certain packages get installed into the User folder as opposed to the System folder(this is where R is generally Installed too).  Running the following CMD Line will install the packages to the R system library, thus eliminating the missing packages error in FME.

install.packages(c("sqldf","gsubfn","proto","DBI","Rcpp","bit64","bit","blob","vctrs","memoise","rgl","crosstalk","htmltools","shiny","httpuv","later","promises","mime","RSQLite","memoise","digest","chron","pkgconfig","raster","sp","rayshader","doParallel","foreach","iterators","ggplot2","gtable","scales","R6","lifecycle","munsell","colorspace","lazyeval","tibble","pillar","crayon","progress","hms","prettyunits","rayrender","magrittr","xtable","fastmap","htmlwidgets","jsonlite","knitr","xfun","manipulateWidget","webshot","miniUI","png"),dependencies=TRUE, lib="C:/Program Files/R/R-3.6.2/library")

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