-1, Microsoft.SharePoint.Client.InvalidClientQueryExceptionThe expression "web/GetFileByServerRelativeUrl('/sites/gefportal/PMISGEFDocuments/Climate Change/Benin - (5807) - Preparation of Benin's First Biennial Update Repo/EA_Request_for_CCEA_IBUR_Benin_23.04.2014.pdf')/$Value" is not valid.