SharePoint Designer cannot open default.aspx page

If you are getting the following error when trying to open the default.aspx page.

“The server could not complete your request. Contact your internet service provider or Web Administrator to make sure that the server has the FrontPage Server Extensions or SharePoint Service Installed”  and when you click on the “Details” button you see the following message.

“SoapServer was unable to process request. —> A Web Part or Web
Form Control on this Web Part Page cannot be displayed or imported because
it is not registered as safe on this site. You may not be able to open this
page in an HTML editor that is compatible with Microsoft Windows SharePoint
Services, such as Microsoft Office SharePoint Designer. To fix this page,
contact the site administrator to have the Web Part or Web Form Control
configured as safe. ”

Try the following:

– Launch the site on your browser and add “?contents=1” to open the web part page maintenance
Example: http://portal/site/default.aspx/?contents=1
– Delete all the web parts withe errors


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