-1, Microsoft.SharePoint.Client.InvalidClientQueryExceptionThe expression "web/GetFileByServerRelativeUrl('/sites/gefportal/PMISGEFDocuments/Climate Change/Togo - (5850) - Togo's First Biennial Update Report (FBUR)/ID5850__01-26-2010_ID4178_CEO_PIF_Approval.pdf')/$Value" is not valid.