Cause: Missing merge modules or runtime redistributable on the deployment machine.
Fix: Download the CR Runtime for .NET Framework (same version) from SAP and install it on your production server.
You will typically need to register or log in to an SAP account to access the file.
Note: SAP requires a free registration (SAP Universal ID). You will need to create an account to download the installer—it is still free for development, but you must log in. download crystal reports for visual studio 2019
IntroductionIntegrating powerful reporting into your .NET applications shouldn't be a headache. While Visual Studio doesn't include Crystal Reports by default anymore, the "Developer Version" provided by SAP is free and fully compatible with Visual Studio 2019.
After reboot, launch Visual Studio 2019: How to download and install SAP Crystal Reports
Prerequisites
If you don't see the Crystal Reports tools in your toolbox after installing, try manually adding the CrystalReportViewer control by right-clicking the Toolbox and selecting Choose Items. SAP Crystal Reports | Business Intelligence Reporting Tools Go to SAP’s Crystal Reports for Visual Studio
Before you begin the download, verify that your environment meets these standards: