Sys.Extended.UI and Sys is undefined, one or another

if i have <asp:ToolkitManager id="tkmg01" runat="server" CombineScript="false" ..>
it will solved the Sys.Extended.UI error,

but after i browsed to upload the file (with ajax asyncuploadfile), it has the error 'Sys is undefined'
To solved this 'Sys is undefined', i have to turn CombineScript="true", but then this will cause the first error.

workaround with
<pages enableEventValidation="false" enableViewStateMac="false" viewStateEncryptionMode ="Never" />
Who is Participating?
doramail05Connect With a Mentor Author Commented:
i used back the previous version 35SP1, and it work with no bugs yet
doramail05Author Commented:
solved at this time
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.