Tag Archives: The development tools

there was an error running the selected code generator unable to retrieve metadata for

there was an error running the selected code generator unable to retrieve metadata for
PROBLEM:
I have updated to Visual Studio 2013 update 2 and now I cannot scaffold controllers.
The problem is not project specific: when I try to scaffold a controller, I get the following error in ALL and ANY project:

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

It was working before updating to Visual Studio 2013 update 2.
A combination of things have worked for me:

    Upgrade to Visual Studio 2013 Update 3. Upgrade Entity Framework to 6.1.1Modify the context configuration to use IDbSet<…> instead of DbSet<…> (I have heard that this can affect using async actions, but not apparently in my case, as I use this in my login actions, etc, as supplied by ASP. NET Identity 2 sample Nuget package).

Quite why this combination works, I have no idea. But then given the thundering silence from MS, I am probably not alone. I guess update 2 just didn’t work…

solve java.net.SocketException : Unrecognized Windows Sockets error: 0: JVM_ Bind

There was an error when starting Tomcat, and port 8080 was occupied. Three solutions
Error message: java.net.SocketException: Unrecognized Windows Sockets error: 0: JVM_Bind
. The solution
Method 1. Modify the configuration file Tomcat — conF –& GT; Server.xml modifies the port number
< The Connector port = “8080” protocol = “HTTP/1.1”
ConnectionTimeout = “20000”
The redirectPort = “8443”/& gt;
    
Method 2. Kill the process occupying the port

cmd–> Run the netstat -ano command to find the process occupying port 8080



Taskkill – pid/6038 f


Restart the tomcat

Method 3. Right-click on the taskbar and start task Manager — process — go to Javaw.exe — end the process — restart Tomcat