Application can't scaffold items

Question

I created an MVC 5 application in VS 2013 Professional and then used EF 6.1 code first with an existing DB on SQL Server Express. When I try to create the views I’m using th

Answer 1

In my case I moved my connection strings out of the Web.config to

<connectionStrings configSource="ConnectionStrings.config"/>

that when I started getting the error when I was trying to scaffold.

There was an error running the selected code generator: ‘Exception has been thrown by the target of an invocation.’

Moving my connection strings back to the Web.config solved my issue.

Answer 2

In my case, I solved the issue with the connection string in the web.config.

Previuos the issue I has <connectionStrings configSource="Configs\ConnectionString.config"/>

and I doesnt know why, but vs cant connect to the database and fail.

after the change

<connectionStrings> <add name="UIBuilderContext" connectionString="metadata=res:/ ..... " /> </connectionStrings>

and it works

Answer 3

I Had the same error. Here are the two things I did to fix the problem:

1. Added name to base in my context: base("name=connectionstringname")
2. I made a mistake in myconnection string and fixed it.

Answer 4

Using Visual Studio 2015

Upgraded mysql server and in the process the mysql for visual studios was upgraded from 6.9.7 to 6.9.8

In my web config there was still a reference to the old 6.9.7 version

Here is my git diff that solved the issue:

-      <provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices,MySql.Data.Entity.EF6,Version=6.9.7.0,Culture=neutral,PublicKeyToken=c5687fc88969c44d"></provider>
+      <provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices,MySql.Data.Entity.EF6,Version=6.9.8.0,Culture=neutral,PublicKeyToken=c5687fc88969c44d"></provider>

Answer 5

I had this:

<appSettings configSource="App_Config\Server\AppSettings.config" />
<connectionStrings configSource="bin\Connections.config" />

I had to remove BOTH AND put back.

<connectionStrings>
    <add name="UIBuilderContext" connectionString="metadata=res:/ ..... " />
  </connectionStrings>

Removing just still caused the same error.

Answer 6

I was getting the same error when I made some changes to my model .. Only way I was able to resolve was 1) stop/kill the process 2) clean solution and rebuild the solution