Error in file.exists(code) : file name conversion problem -- name too long?

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Hi, I am using RStuido 3.4.0 in Windows 10. When I use jiebaR package, it prints out this error. The file contains Chinese letters.

f <- scan('G:/data/meidi_jd.txt',sep='\n',what='',encoding="UTF-8")
Read 55775 items
seg <- qseg[f]
Error in file.exists(code) :
file name conversion problem -- name too long?