I  deployed my asp.net 2.0 with ajax application to a web server, and some machines work fine. but some machine always display an empty page and apparently has contents by viewing source code, using firfox error console and IE8 can get some error messages as the following:

Sys.ArgumentUndefinedException: Value cannot be undefined.

Parameter name: baseType

lineL702

character:79

code:0

URI: http://domain/ScriptResource.axd?d=P1nm5fHC31iuVl2OUnakUBSbaH0VrqkR0jHdvQZ64MaGqITcnCt-SrHvFKnizeTu-g2OLxvF_UicP5krjTcUvfbNrNGvkMGn6rqT_cF8H-I1&t=633303309080937500

Sys.ArgumentException:  does not derive from Sys.Component.

Parameter name: type

line:2825

character: 9

code:0

URI: http://domain/ScriptResource.axd?d=P1nm5fHC31iuVl2OUnakUBSbaH0VrqkR0jHdvQZ64MaGqITcnCt-SrHvFKnizeTu-g2OLxvF_UicP5krjTcUvfbNrNGvkMGn6rqT_cF8H-I1&t=633303309080937500

 Hi,

http://danhounshell.com/blogs/dan/archive/2007/03/21/sys-argumentundefinedexception-value-cannot-be-undefined-parameter-name-id.aspx

Check the Above link

Thanks for your reply. It doesn't work for my application.

my applicatoin has been deployed on a server, and most of clients can work correctly, just serveral clients don't work, I don't know what's wrong about it. 

qwe123kids:

 Hi,

http://danhounshell.com/blogs/dan/archive/2007/03/21/sys-argumentundefinedexception-value-cannot-be-undefined-parameter-name-id.aspx

Check the Above link

 

I have fixed this problem. It was because my AjaxControlToolkit.dll version is too old. I  replaced the 1.0.10618.0 one with 1.0.20229.38167, then it works.