Please check if Telerik Reporting is installed on the production machine and remove it. Assemblies can be Bin deployed.
On the Dev machine, check the project's Bin folder and if it contains DEV assemblies (check the file's properties and if the DLLs description points they are TRIAL, continue with the steps in Upgrading Telerik Reporting Trial to Telerik Reporting Developer license
). Then deploy the Bin folders content in production.
Let us know how it goes and if you need any further help.
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