Item6494: Attach/remove/attach gives error: Can't call method "binmode" on an undefined value

Error message is shown: "TWiki detected an internal error - please check your TWiki logs and webserver logs for more information. Can't call method "binmode" on an undefined value"
when following these steps:

1. go to attach screen
2. browse to file 1
3. browse to file 2
4. browse to file 3
5. browse to file 4
6. remove file 2 and 3 from list (file 1 and 4 left)
7. browse to file 5
8. hit [upload]

-- TWiki:Main/PeterThoeny - 15 Jun 2010

This is now fixed in SVN trunk and 5.0 branch.

Patch:

--- lib/TWiki/Request/Upload.pm     (revision 18861)
+++ lib/TWiki/Request/Upload.pm     (working copy)
@@ -94,7 +94,7 @@

 sub handle {
     my $fh = new IO::File( $_[0]->{tmpname}, '<' );
-    $fh->binmode;
+    $fh->binmode if( $fh );
     return $fh;
 }

-- TWiki:Main.PeterThoeny - 15 Jun 2010

Hi, I am getting the "Can't locate object method "binmode" via package "IO::File" with the Twiki-5.1.4 installed on XP. I also have ActivePerl 5.8.6.811 installed. Anyone else seeting this problem? I checked Upload.pm file, it matches the new updated version. Thanks.

-- TWiki:Main.JayTim - 2013-06-24

Any suggestion on how to update "CPAN:IO::File" library? When I type install IO:File in Perl Package Manager, I see the there are 4 different choices like IO-File-Cached, IO-File-Lockable, IO-File-Multi and IO-File-String, do i need to reinstall all of them? THanks.

-- TWiki:Main.JayTim - 2013-06-24