SAP Crystal reports (Failed to load database information)

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There is a problem i have been facing for couple of days. The problem is that i have developed C# Winform application using windows 7 professional sp1,mysql5.5 and SAP crystal report. When i deploy... and install it on the client machine then if the application finds windows 7 professional sp1 on client machine the reports are displayed very well in the application but if it finds (other than windows 7 sp1) professional on the client machine it gives error "Failed to load database information. bla bla {GUID}.rpt file" while displaying or printing. The application developed is not working on other than (Windows 7 professional sp1).

Deploying includes packages. .NET frame work 4.0 , Run time Crystal report Engine , Mysql 5.5 and VS C++ Redistributable.

Developer Machine has. Windows 7 professional sp1, Visual Studio 2010 , SAP Crystal Report for VS 2010, MYSQL Server 5.5

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c#mysqlcrystal-reports-2010

1 Answers

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your application EXE file cannot stand alone to running it, the EXE file need the [app_name].exe.config in the same directory so the application can run and load the crystal report successfully.

so these is my conclusion:

  1. the app.exe.config is all in one package which cannot be separated with the EXE file.
  2. the supporting component such as dll files, app.exe.config etc CANNOT be combined into the EXE file.

You can find more in following Link

Try this also:

Add the following section to the config file:

<startup useLegacyV2RuntimeActivationPolicy="true">
 <supportedRuntime version="v4.0"/>
</startup>

The attribute will be required to view reports based on ADO.NET objects