I have a running project. I added a new page and copied all the contents from an existing page. Because my new page is quite similar to the existing one. But when compiled, got too many errors. Almost all the errors are like #1 and some are #2 errors as below. Any idea what is going on? Thank you very much in advance.
1. The name XXXX does not exist in the current context
2. The best overloaded method match for "MethodName(arguments)" has some invalid arguments