Solved A local variable can't be used before it's declared (missing reference)

Hello!
I've got a stupid error, which makes no sense. Have a look at this code from my plugin please:

Code:

                MySqlConnection connection = new MySqlConnection(connectionString);
                connection.Open();
                //...                MySqlCommand cmd;
                cmd = connection.CreateCommand();
                cmd.CommandText = command;
                cmd.ExecuteNonQuery();

It seems to be fine, but the compiler throws an error:

Code:

A local variable `cmd' cannot be used before it is declared

This snippet is the only place in code where the 'cmd' name occurs. The code had been tested in a normal Console C# project before, and it worked perfectly. However, it causes an error in Oxide.
Could someone explain it to me?

 

It's already initialized. Have a look on the snippet again please.

 

I tried it, but it doesn't fix the error :/

 

The full error is:

Code:

Error while compiling: DataUploader.cs(42,17): error CS0841: A local variable `cmd' cannot be used before it is declared

The updated code:

Code:

                MySqlConnection connection = new MySqlConnection(connectionString);
                connection.Open();
                //...                MySqlCommand cmd = connection.CreateCommand();
                cmd.CommandText = command;
                cmd.ExecuteNonQuery();

It makes completely no sense. It has already happened to me while using oxide before.

 

I'm developing using Visual Studio Community 2017. It doesn't seem to be a missing reference, because it would throw a missing reference exception. It's quite annoying since it stops me from developing any plugins. Could you try to compile the plugin to recreate the error? Or at least try to find out what the problem is by having a look at the whole code? It's pretty short: ybin | private paste
Thanks in advance.

 

Okay, the thread can be closed. I solved it somehow, but it required changing the source of the Oxide.CSharp. Thanks for replies.

 

I added a reference to MySqlData dll in the CSharp source, compiled it, then added using MySqlData in the plugin and it worked. Not sure if it wouldn't work without adding the reference in source though.

 

Thanks, I didn't know about that. The Oxide's MySQL library has no documentation, has it? I couldn't find it, so I decided to use standard library instead.