Question: I've been wondering about this, I have tried multiple suggestions I have got from different sites. I have my code here but it's not working.

```
Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" _
(ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal _
uReturnLength As Integer, ByVal hwndCallback As Integer) As Integer

Private Sub Button3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim fileName As String

    FileName = Chr(34) & (Button1.Text) & Chr(34)
    mciSendString("open " & FileName & " alias myDevice", Nothing, 0, 0)
    mciSendString("play myDevice", Nothing, 0, 0)

    FileName = Chr(34) & (Button2.Text) & Chr(34)
    mciSendString("open " & FileName & " alias myDevice", Nothing, 0, 0)
    mciSendString("play myDevice", Nothing, 0, 0)

```

This code only plays the first song and will not play the second one...  

I'm thinking of creating another function similar to the one above with different name but still no luck.

```
Private Declare Function mciSendString2 Lib "winmm.dll" Alias "mciSendStringA" _
(ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal _
uReturnLength As Integer, ByVal hwndCallback As Integer) As Integer

```

Any idea? Or is it possible to play multiple mp3 at the same time?

Answer: 
I was having the same issue with Robotium and the lint markers. Instead of modifying any manifest files, I suggest disabling the minSDK lint check for your project that is using Robotium.

"Clear Lint Markers" removed the error temporarily, but it kept coming back every time I saved a file in the affected project.

Here's what worked for me:

> 
> Right click project -> Properties -> Android Lint Preferences
> 
> 
> Search for "minSdk" in the search box
> 
> 
> Click on "UsesMinSdkAttributes"
> 
> 
> Click the "Ignore All" button at the bottom. Clean and rebuild the
>  project, and Eclipse/ADT will no longer run the lint check for minSdk
>  on your project.
> 
> 
>
Please refer this [link](http://tools.android.com/tips/lint). As it says,

Android Lint is a new tool introduced in ADT 16 (and Tools 16) which scans Android project sources for potential bugs. It is available both as a command line tool, as well as integrated with Eclipse (described below), and IntelliJ (details). The architecture is deliberately IDE independent so it will hopefully be integrated with other IDEs, with other build tools and with continuous integration systems as well.