Strmwrtie&strmread problems with MSI package

See more:

C#

Hi Every One
I want some help for these problems , I make simple App read and write data from file , it is working with me in release and debug mood but when i make Setup package on Visual Studio , these Functions don't work and make App crash , so is there any solutions for this problem ?
I know the problem where is , StrmWrtie&StrmRead but i don't know why is it happen ? and what is the solution

private void button1_Click(object sender, EventArgs e)
{
    string textbox1 = textBox1.Text;
    StreamWriter ss = new StreamWriter(Application.ExecutablePath+"test.text");
    ss.WriteLine(textbox1);
    ss.Dispose();
    MessageBox.Show("Write is Done");
    StreamReader sss = new StreamReader(Application.ExecutablePath + "test.text");
    string textbox2=sss.ReadLine();
    textBox2.Text = textbox2;
}

What I have tried:

Stack Ovrflow , MSDN , CodeProject