drive_download produces error when file name contains "+"

[tpbarrette]

I have been attempting to use a "for loop" in conjunction with "drive_download" to download a list of files from Google Drive one at a time, manipulate the files, save a new CSV file, and then delete the file that I downloaded from local storage. When the files in the list contain plus symbols (+) in the name, the loop quits and I get the following error message: Error: 'file' does not identify at least one Drive file.

To verify this, I have created two files, Test.xlsx, and Test+.xlsx (I use CSV versions of these files), which contain the following text in cell A1:

This;is;a;test

If the Test+ file is not present in Google Drive, the code will run fine. If it is present, the error message is shown. Note that I have not specified a working directory since I am working in R studio using a project file.

Testfile <- drive_find(pattern = "Test")#Identifies all Delay Results files
Testfilenames <- unlist(Testfile[,1])#Removes extraneous columns from drive_find results

for(i in Testfilenames){
  drive_download(as.character(paste(i)))#Downloads file from Google Drive based on list of file names
  a <- as.data.frame(cSplit(a,'V1',sep = ";"))#Equivalent of "Text To Columns" in Excel
  a$filename <- i#Adds a column with the file name in case the files need to be combined in the future
  write.csv(a, as.character(paste(i, ".csv", sep = "")))#Creates a new CSV file
  unlink(i)#Deletes original file from local drive
  }

Test+.xlsx
Test.xlsx