I have a problem with my custom webpart pages which are inside sitedefinition. I have a sitedefinition defined for creating sites and sitedefinition contains the master pages and .aspx pages. My pages have webpartzone defined to with the custom webparts
added in it. From the browser, when I try to add third party webparts or sharepoint webparts or my custom webparts, it's failing with
"Unable to add selected web part(s). The operation could not be completed because the Web Part was deleted by another user or is invalid."
Does anyone have the same problem? Please help me. Why the pages are not allowing to add any other webparts to the page. Also I double checked my pages and webpartzones if I am blocking to add webparts via AllowCustomizations=false but I am not. If
I create a site with the sitedefinition, isn't it possible to add webparts to the page manually? I haven't found any information about this. Any ideas please.
Thanks in advance,
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