Generally, publishing to a report server running in SharePoint integrated mode,
we need to specify the TargetServerURL property to a URL of a SharePoint top-level site or subsite.
For example, http://<servername>, http://<servername/<site> or http://<servername>/<site>/<subsite>.
And also specify the TargetReportFolder to a URL of SharePoint library to the.
For example, http://<servername>/<site>/Documents/MyFolder.
However, if it still doesn’t work. Please let me know.
For more information about How to Set Deployment Properties, please refer to: