Invalid export DLL or export format

[#1]

I have created a code to export the report to excel and it works.. but when i use the export property of the crystal report viewer, all file format works except for the excel format and I am receiving this kind of message whenever I tried using export property of the crystal report viewer..

"Error in File rpt017 {4742A80B-0356-499C-9B57-BE59A69BD788}.rpt: Invalid export DLL or export format."

any idea? someone?

[Former Member]

I have exactly the same problem.

I have a web app that exports the same .rpt to two formats: PDF and Excel.

When I'm in VS2005 (with CR2008) I'm able to run it with F5 (launching the ASP.NET Development Server) and see both exports working in a url like, say, http://localhost/xpto.aspx

Then I created a virtual directory in IIS, pointing it to the folder where the web application is placed. I opened Internet Explorer and pointed it to the url of the virtual directory (say, http://localhost/CRTest/xpto.aspx). Now, only PDF worked; the Excel export produced the error mentioned in this thread:

Error in File temp_3200f78a-862e-447c-9ac2-25ac0f481248 {F1B60CAC-FDD0-4668-BF7D-8C71AE8F6FBC}.rpt: Invalid export DLL or export format.

Note that the name of the file is random. Also, the xpto.aspx referred above is the SAME file. It happens in the SAME machine - it seems that CR behaves differently when web applications are executed through ASP.NET Dev. Server and IIS. I noted that ASP.NET Dev. Server runs with my user (as it is the user that is running the VS2005) and my user is administrator; IIS runs with Network Service user.

I deduced that it should be a permission issue. So I gave administrator rights to some users I found in my user list, like those of the ASP.NET and so. Also I gave Everyone permissions to the Temp folders where that temp files are placed (I was able to get that paths via File Monitor).

More on the stack trace:

[COMException (0x800002b4):

Error in File temp_3200f78a-862e-447c-9ac2-25ac0f481248 {F1B60CAC-FDD0-4668-BF7D-8C71AE8F6FBC}.rpt:

Invalid export DLL or export format.]

CrystalDecisions.ReportAppServer.Controllers.ReportSourceClass.Export(ExportOptions pExportOptions, RequestContext pRequestContext) +0

CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext) +280

[InvalidArgumentException:

Error in File temp_3200f78a-862e-447c-9ac2-25ac0f481248 {F1B60CAC-FDD0-4668-BF7D-8C71AE8F6FBC}.rpt:

Invalid export DLL or export format.]

CrystalDecisions.ReportAppServer.ConvertDotNetToErom.ThrowDotNetException(Exception e) +700

CrystalDecisions.ReportSource.EromReportSourceBase.ExportToStream(ExportRequestContext reqContext) +335

CrystalDecisions.CrystalReports.Engine.FormatEngine.ExportToStream(ExportRequestContext reqContext) +680

CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToStream(ExportOptions options) +86

CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToHttpResponse(ExportOptions options, HttpResponse response, Boolean asAttachment, String attachmentName) +89

CrystalDecisions.CrystalReports.Engine.ReportDocument.ExportToHttpResponse(ExportFormatType formatType, HttpResponse response, Boolean asAttachment, String attachmentName) +112

MyApp.Xpto.Page_Load(Object sender, EventArgs e) in C:\CRTest\Xpto.aspx.vb:117

System.Web.UI.Control.OnLoad(EventArgs e) +99

System.Web.UI.Control.LoadRecursive() +47

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436