[R] R CMD check detects parse error, but in which file?

Matthieu Stigler matthieu.stigler at gmail.com
Wed Mar 4 12:28:40 CET 2009

Jim Lemon a écrit :
> Matthieu Stigler wrote:
>> Hello
>> I looked on the archives but did not find answer for that...
>> Running R CMD check for a package, i get an error:
>> Error in parse(n = -1, file = file) : unexpected symbol at
>> 3341: }
>> But how can I find which file is guilty? What is this 3342 referring to?
>> Finally the solution I found is to source() every file until I find 
>> the file where the problem is... Is there some better way to do it? 
>> With a debuger? thanks a lot!
> Hi Matthieu,
> My understanding (and I may get clipped up alongside the head if I'm 
> wrong) is that R concatenates all the source code into one big file 
> hen checking and the number is the line number in that file. The error 
> message may mean that you have an extra right parenthesis in that line 
> (or very near to).
yes I think you are right, as I received similar answer from Uwe Liggs:

Given I remember correctly without looking into the details:
It is the line number in the concatenated file (of all your .R files, by 
default sorted in a C locale).

Uwe added, there is no method known to him to determine in which file 
the problem is, and he recommended to post to r-devel. I'll do in a 
while if there is no answer in r-help, to avoid cross-posting.

Thanks to both of you!

> Jim

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