c# - Generating .rdlc report works on local but not after deploying to azure -

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in asp.net mvc 5 application have following method:

public actionresult sendmailasastudent(string studentid, string companyid, int applicationid, string companycvr, string studentcpr)         {             var manager = new usermanager<applicationuser>(new userstore<applicationuser>(new applicationdbcontext()));             var student = manager.findbyid(studentid);             var company = manager.findbyid(companyid);             var application = db.applications.find(applicationid);             project projectobj = db.projects.find(application.projectid);               var mymessage = new sendgridmessage();             mymessage.from = new mailaddress("info@leepio.dk");             mymessage.addto(student.email);             mymessage.addto(company.email);             mymessage.subject ="the contract " + projectobj.title + " signed!";             mymessage.html = "here final contract";              localreport localreport = new localreport();             localreport.reportpath = server.mappath("~/contracts/contract.rdlc");              reportparameter cvrparameter = new reportparameter("cvrparameter", companycvr);             reportparameter companynameparameter = new reportparameter("companynameparameter", company.companyname);             reportparameter companyaddressparameter = new reportparameter("companyaddressparameter", company.address);             reportparameter studentnameparameter = new reportparameter("studentnameparameter", student.firstname+" "+student.lastname);             reportparameter studentaddressparameter = new reportparameter("studentaddressparameter", student.address);             reportparameter studentzipcodeparameter = new reportparameter("studentzipcodeparameter", student.zipcode);             reportparameter jobstartdateparameter = new reportparameter("jobstartdateparameter", projectobj.startdate);             reportparameter jobenddateparameter = new reportparameter("jobenddateparameter", projectobj.enddate);             reportparameter jobdescriptionparameter = new reportparameter("jobdescriptionparameter", projectobj.description);             reportparameter jobhoursperweekparameter = new reportparameter("jobhoursperweekparameter", projectobj.hoursperweek.tostring());             reportparameter jobhourlyrateparameter = new reportparameter("jobhourlyrateparameter", projectobj.hourlyrate.tostring());             reportparameter cprparameter = new reportparameter("cprparameter", studentcpr);              localreport.setparameters(new reportparameter[] { cprparameter });             localreport.setparameters(new reportparameter[] { cvrparameter });             localreport.setparameters(new reportparameter[] { companynameparameter });             localreport.setparameters(new reportparameter[] { companyaddressparameter });             localreport.setparameters(new reportparameter[] { studentnameparameter });             localreport.setparameters(new reportparameter[] { studentaddressparameter });             localreport.setparameters(new reportparameter[] { studentzipcodeparameter });             localreport.setparameters(new reportparameter[] { jobstartdateparameter });             localreport.setparameters(new reportparameter[] { jobenddateparameter });             localreport.setparameters(new reportparameter[] { jobdescriptionparameter });             localreport.setparameters(new reportparameter[] { jobhoursperweekparameter });             localreport.setparameters(new reportparameter[] { jobhourlyrateparameter });              string reporttype = "pdf";             string mimetype;             string encoding;             string filenameextension = "pdf";             warning[] warnings;             string[] streams;             var renderedbytes = localreport.render(reporttype, "", out mimetype, out encoding, out filenameextension, out streams, out warnings);             response.addheader("content-disposition", "attatchment; filename=contract." + filenameextension);             memorystream stream = new memorystream(renderedbytes);             mymessage.addattachment(stream, "contract.pdf");               var apikey = "key removed post";             var transportweb = new web(apikey);             transportweb.deliverasync(mymessage);              contract contract = new contract();             contract.studentid = studentid;             contract.companyid = companyid;             contract.cvr = companycvr;             contract.applicationid = applicationid;             contract.issigned = true;              db.contracts.add(contract);             db.savechanges();             return redirecttoaction("index", "projects");         }

if run on localhost works, sends mail report file succesfully. when deploying azure no longer works. commenting out report generation , adding attachment makes work, pinpointed problem around report generation.

what can possibly cause no longer work on site? have checked parameters not null.

i turned on error showing in web.config so:

<customerrors mode="off">

then got error: 

could not load file or assembly 'microsoft.reportviewer.processingobjectmodel, version=10.0.0.0, culture=neutral, publickeytoken=b03f5f7f11d50a3a' or 1 of dependencies. system cannot find file specified.

thanks crowcoder found out problem, had install microsoft.report.viewer 10.0.0 nuget package manager!

built, published , works!


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