Server Error in '/' Application

Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS1010: Newline in constant

Source Error:

s_head = "Hello from YouSendIt,

Your file named \"" + temp + "\" (" + filesize.ToString() + " " + sKB + ") was sent to " + ToEMail.Text + ".

\r\n" +
Line 623: "Please keep the following link for your records in case your recipient