This error is regularly appearing without any information to help diagnose the cause. The image below is what happened when I right click the mouse on the report background. 

I have an issue on deploy my project on azure. I use a trial license right now and when I run my project on localhost it can work properly but when I publish my project on azure I got an error on javascript show me "Uncaught ReferenceError: telerikReportViewer".

I think it's about "<script src="~/api/reports/resources/js/telerikReportViewer"></script>" 

any suggestion ? and where is the actual location of "api/reports/resources/js/telerikReportViewer" on my local, I don't see any.

I am new to the product and trying to overcome basic hurdle - connect to DB from within Report Designer

Sorry if it was discussed already but I only can find very old threads on the subject and one of the videos on the steps is using Adobe Flash which is dead now.
Any help is appreciated

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Maria DB 10.4 is installed on the same machine as Report Server
ODBC Drivers both 32 and 64 deployed to both server and my desktop machine

Telerik Data Direct is not being used as it does not have support of Maria DB, only mySQL.
I have tested ODBC access both remote and on the server from ODBC Manager and it is working
Data Connection "my-server" is added on Report Server and looks like this

DRIVER={MariaDB ODBC 3.1
Driver};TCPIP=1;SERVER=server-name;UID=*********;PWD=********;DATABASE=******;PORT=3309;OPTIONS=4194384;

it is unfortunate that there is no action on the portal to test it from UI, but may be it is done automatically, hard to say

When in Report Designer using SQL Data Source I can see existing data connection listed as "server:/http://server-name:83/my-server" but when I try to execute simple select statement (ex: select * from my_table; ) in next step I am getting

"An error has occurred. Parameter information cannot be retrieved: The query parameters cannot be obtained...."

followed by empty screens and more errors.

In documentation there is a reference to https://docs.telerik.com/reporting/sqldatasource but content is convoluted to read and figure out what is missing.

are there additional steps which need to be taken for Report Server to work out of the box?

Hello,

     Does Report Server support a PostgreSQL data connection for reports?  I do not see it in my dropdown for my free trial version of 6.0.20.219.

Thank you.

Hello,

  We have a number of reports configured to show sales data from last week, last month, last quarter, etc. The date parameters all work off of a CurrentDate = Now() expression, and extrapolate from there for the different time periods required (AddDays, AddMonths, etc). All of these work perfectly when used on-demand. However, if I set up a subscription/scheduled report, the date parameters don't seem to get refreshed. I made sure that the CurrentDate parameter was ordered as the first parameter to be run, but that didn't seem to make a difference. The report runs on the scheduled date and time, but the data that it's returning is not relevant.  Is there any way to make sure that those date parameters get refreshed before the scheduled report runs?

Thanks

Travis

Hi,

I have wrongly setup the report server (trial version) storage type as File when it should be Microsoft SQL Server. Now I'm stuck at the login page with login error : The required anti-forgery cookie "__RequestVerificationToken" is not present

How do I change the storage type for the report server?

Thank you.

Dear support team,
I'm using Report server (Version: 6.0.20.219) to design and manage report.

After completed design report I follow this link "https://docs.telerik.com/reporting/html5-report-viewer-howto-use-it-with-reportserver" to  embed report into my ASP.NET Application.

I follow step by step is completed, but when I run that html report it show error:

"Error loading the report viewer's templates. (templateUrl = 'http://localhost:83/api/reports/resources/templates/telerikReportViewerTemplate-14.0.20.219.html/')."

I come in to Report Server installed folder "C:\Program Files (x86)\Progress\Telerik Report Server\Telerik.ReportServer.Web\ReportViewer" but I can't find the "templates" folder :(

Please help me the way to fix it.