I am facing a small big problem. I have taken a dropdownList control and ID is \"drpDownCountries\" in ASP.Net project. The problem is that \"The dropdownlist contr
\"drpDownCountries
I have seen this error occur when there is a copy of the .aspx page in the project folder.
Example:
Error occurs in Test.aspx.
There is a Test-copy.aspx file in the project folder.
Delete, rename with a different extension, or move Test-copy.aspx to a different folder.
Error is resolved.