Argument is missing escape sequence '\\'.

This error generally occurs during search or replace when regular expressions or wildcards are used in a search string. This error can be caused by a single backslash (\) at the end of a pattern or by \x or \u entered without a valid hexadecimal Unicode character.

To correct this error

• To search using the regular expression escape character, enter \.
• To search for a unicode character, enter \x or \u followed by a valid Unicode value.
• To search for the literal backslash, use \\.