Dapper.net错误与SqlMapper.cs

Question

I started a new project using vb.net and micro ORM DAPPER.NET . Over nuGet I integrated the dapper and dapper.simpleCRUD . My problem is appears when i want to execute some CRUD operations i have a problem with SqlMapper.cs .I do not know whay because I successfully integrated into the project a "dapper.simpleCRUD" extension . What am doing wrong??

I try manual to add SqlMapper.cs file and i get this:

Answer 1

The IDE is simply presenting a confusing UI here. The problem is not that SqlMapper.cs is missing. Rather, some exception has happened (presumably a SQL error), and rather than simply show you the failure, the IDE is attempting to show you the original point where the error is detected as code . Which it doesn't have! Basically, ignore the request for SqlMapper.cs - that is just the IDE having a bad day. What you actually need to do here is to focus on finding the exception . That might be hidden in another window, or it might appear when you click one of the buttons. In the worst case, just run the code outside of the IDE - the IDE can't stick its nose in if it isn't running! You should eventually find the actual exception, which is probably either a ADO.NET connection failure, or invalid SQL being used.