August 26, 2014

Microsoft.Jet.OLEDB.4.0 provider is not registered

The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine.

There is no chance to use of Microsoft.Jet.OLEDB.4.0 and Microsoft Access Files like mdb file on 64bit Windows

Solution 1:
Right Click on Project > Properties > Build > Change Platform Target to x86 and recompile it again

Solution 2:
Go to App.config and change ConnectionString from Provider=Microsoft.Jet.OLEDB.4.0 to Provider=Microsoft.ACE.OLEDB.12.0

August 22, 2014

The service cannot be activated

The service cannot be activated because it does not support ASP.NET compatibility. ASP.NET compatibility is enabled for this application. Turn off ASP.NET compatibility mode in the web.config or add the AspNetCompatibilityRequirements attribute to the service type with RequirementsMode setting as 'Allowed' or 'Required'.

Add this line in top your Service class
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]