If you've made you're way here you've received the
The type initializer for 'CrystalDecisions.CrystalReports.Engine.ReportDocument' threw an exception. at CrystalDecisions.CrystalReports.Engine.ReportDocument..ctor() exception.
In my experience, there are a few things that can cause this, you will want to look at this things:
- Make sure that your site or application is referencing the correct Crystal Reports assemblies. There are times when you can leave one off and this can be thrown.
- Make sure that the Crystal Reports runtimes are installed. It is VERY important that you have the correct runtime installed for you application. For instance, if you install the 32-bit runtime you will want to force your application into x86 (32-bit) mode. If you have the 64-bit runtime installed make sure it targets x64.
- In ASP.NET, I just encountered this error because the web site was running in the 64-bit app pool and it was trying to use the 32-bit crystal reports runtime. This will work actually, but you have to tell web-site (in IIS7) to allow 32-bit apps in it's advanced properties. If you do not allow 32-bit apps, it will fail because it won't find the references it needs. By default, the web-site will disallow 32-bit apps (at least it's by default on the server I'm using).
Luckly, I had one web-site working on this server and one not… so I knew it was capable of working which helped narrow down what I was looking for.