Hi Andrew, I too have had this issue with a message saying something to the effect of the file X cannot be copied because it is in use by another program.
I did some googling on this and found that the Preview process was interfering with the copying of the file across the network. You can kill the process in Activity Monitor, or preview a separate file and copy the ones you want. Yesterday, I tried copying from a video camera to my NAS and had the same problem. This time, preview wasn’t the issue. Another way around this is to relaunch Finder by either closing and reopening the Finder windows you were working in or forcing Finder to quit. It will launch automatically. Hope this works for you, Kevin On Dec 26, 2014, at 5:39 AM, Andrew Lamanche <ioani...@me.com> wrote: > Hi, > > For some mysterious reason, my macbook air refuses to grant me permission to > copy a file to a folder that's located on an external drive on my network. > And yet, I copied to the said same drive yesterday without any problems. > Anybody has any suggestions as to why and how it could be overcome? It seems > so illogical. To my knowledge I have changed nothing in terms of my setup or > permissions. > > Andrew > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to macvisionaries+unsubscr...@googlegroups.com. > To post to this group, send email to macvisionaries@googlegroups.com. > Visit this group at http://groups.google.com/group/macvisionaries. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout.