Revit 2019 can't run external applicatins

[Anonymous]

[naveen.kumar.t · Accepted solution]

Hi @Anonymous ,

I think there are some problems with your .addin manifest file

1)Check whether you gave proper class name. For example

namespace REVITAPPLICATION
{
    [Transaction(TransactionMode.Manual)]
    public class Class1 : IExternalApplication

then the FullClassName should be 

<FullClassName>REVITAPPLICATION.Class1</FullClassName>

2)Since you created an application, in the Addin manifest file the ADDIN type should be application

     <AddIn Type="Application">

I hope this helps.

[Anonymous]

Thanks for your help. I find my fullclassname is wrong. Letters should be case-sensitive.