For certain text files, I get the following error message when I click on them in Nautilus 2.14.1: <error> Cannot open test.txt The filename "test.txt" indicates that this file is of type "txt document". The contents of the file indicate that the file is of type "plain text document". If you open this file, the file might present a security risk to your system. Do not open the file unless you created the file yourself, or received the file from a trusted source. To open the file, rename the file to the correct extension for "plain text document", then open the file normally. Alternatively, use the Open With menu to choose a specific application for the file. </error> I can only presume this is a bug, since I'm unaware of any real distinction between "txt document" and "plain text document". I haven't been able to narrow down what specific content causes this confusion but I've been able to reproduce this problem using the attached file. The name of the file doesn't seem to make any difference.
Created attachment 131509 [details] Nautilus refuses to open because it's a "plain text document".
fixed in 2.15.x