Error when running my app on another machine

Hello, I finished my program, it runs fine on my computer. However when I try it on virtual machine (Win7) I'm getting error something like: Invalid value for attachDbfilename. Here's a screenshot:

http://i.hizliresim.com/Br69aj.png

Here's full error output: https://gist.github.com/nikel/7cf254...aed24d9ee43483

I defined attachdbfilename like this:

VB.NET Code:

private void Form1_Load(object sender, EventArgs e)
{
    SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
    builder.DataSource = @"(LocalDB)\MSSQLLocalDB";
    builder.AttachDBFilename = @"|DataDirectory|\database\gazi_db.mdf";
    builder.IntegratedSecurity = true;
    builder.ConnectTimeout = 30;
 
    sqlConnection = new SqlConnection(builder.ConnectionString);
    ...

How can I fix this?

How did you deploy the app? XCOPY, ClickOnce or something else? Regardless of the how, the error message clearly indicates that there is no file named 'gari_db.mdf' in the 'database' subfolder of your data directory. What you need to do about it depends on the how.

Hello, I don't have any built in setups. I just want to zip "Release" (if required "Debug") folder and run on anther machine. Because these machines don't have internet connection. I've heard XCOPY for the first time, need to search about it.

I have mdf files both in exe and and exe\database directories. In fact I don't know where to put them.

I created database from gui, if it makes sense.

One more thing, do I have to set server name?

Thank you for your reply.

I installed Windows 7 English and sql localdb. Now I'm getting another error:

http://i.hizliresim.com/W09l24.png

https://gist.github.com/nikel/fabb0a...d33fcab0f8ee0c

and this: Object reference not set to an instance of an object
(like the previous one)

If the error message says that it couldn't find the server and/or instance specified then that's what happened. If it was me, when an error log told me that the instance I expected to be there wasn't there, I'd look to see what instances there were there.