Error when trying to upload folders : lexical error: invalid char in json text

[MorHeene]

When trying to upload a folder containing several subfolders I keep getting the following error, even after updating to the latest version:

Code:

cr_project <- osf_retrieve_node("MyOSFprojectNode")
osf_ls_files(cr_project, type = "folder")
target_dir <- osf_ls_files(cr_project, path = "Output", pattern = "FolderNameOnOSF")  # Define the target directory: Selecting the "FolderNameOnOSF" subdirectory within top-level "Output" directory.
osf_upload(target_dir, path = ".", recurse = TRUE, conflicts = "overwrite", verbose = TRUE) 

Error message:

Uploading 577 new file(s) to OSF
Error: lexical error: invalid char in json text.
                                       Cannot complete action: file or
                     (right here) ------^ 

Using osfr to upload those folders definitely worked a couple of months ago. No clue what might have changed.

[MorHeene]

Just in case someone else runs into the same problem: Seems that I found out what caused the problem: The various subfolders contained hidden .RData files. After deleting them, all sub-folders and their content were successfully uploaded.