ASP.NET

gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack     at PythonFinder.failNoPython (C:\SourceCode\customerserviceweb\CustomerServiceWeb.Web\node_modules\node-gyp\lib\configure.js:483:19)
gyp ERR! stack     at PythonFinder.<anonymous> (C:\SourceCode\customerserviceweb\CustomerServiceWeb.Web\node_modules\node-gyp\lib\configure.js:508:16)
gyp ERR! stack     at C:\SourceCode\customerserviceweb\CustomerServiceWeb.Web\node_modules\graceful-fs\polyfills.js:284:29
gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:154:21)
gyp ERR! System Windows_NT 10.0.16299
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\SourceCode\\customerserviceweb\\CustomerServiceWeb.Web\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd C:\SourceCode\customerserviceweb\CustomerServiceWeb.Web\node_modules\node-sass
gyp ERR! node -v v10.15.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
Build failed with error code: 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.7 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.7: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-sass@4.5.3 postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@4.5.3 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\e09795\AppData\Roaming\npm-cache\_logs\2019-01-24T21_03_42_886Z-debug.log

//Display Data in DataGridView
private void DisplayData()
{
    con.Open();
    DataTable dt=new DataTable();
    adapt=new SqlDataAdapter("SELECT t.TransactionID,m.FullName,convert(varchar,m.registration_date,101) as registration_date," +
             "m.enelope_number,Reg_Fee,t.Amount,t.AmountPaid,t.AmountOwed as Past_Due " +
             "from dbo.Transactions AS t INNER JOIN dbo.Members AS m ON t .MemberID = m.MemberID INNER JOIN " +
             "dbo.PaymentTypes AS p ON t .TypeID = p.PaymentTypeID", con);
    adapt.Fill(dt);
    dataGridView1.DataSource = dt;
    con.Close();
}
//Clear Data
private void ClearData()
{
    Email.Text = "";
    Phone.Text = "";
    TransactionID = 0;
}
//dataGridView1 RowHeaderMouseClick Event
private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
    TransactionID = Convert.ToInt32(dataGridView1.Rows[e.RowIndex].Cells[0].Value.ToString());
    memberName.Text = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();
    Email.Text = dataGridView1.Rows[e.RowIndex].Cells[2].Value.ToString();
    Phone.Text = dataGridView1.Rows[e.RowIndex].Cells[3].Value.ToString();
    Address.Text = dataGridView1.Rows[e.RowIndex].Cells[4].Value.ToString();
    member_sex.Text = dataGridView1.Rows[e.RowIndex].Cells[5].Value.ToString();
    date_member_registered.Text = dataGridView1.Rows[e.RowIndex].Cells[6].Value.ToString();
    envelope_number.Text = dataGridView1.Rows[e.RowIndex].Cells[7].Value.ToString();
}
//Update Record
private void btn_Update_Click(object sender, EventArgs e)
{
    if (Email.Text != "" && Phone.Text != "")
    {
        cmd = new SqlCommand("update Transactions set Name=@name,State=@state where transactionID=@id", con);
        con.Open();
        cmd.Parameters.AddWithValue("@id", TransactionID);
        cmd.Parameters.AddWithValue("@amount", Email.Text);
        cmd.Parameters.AddWithValue("@paid", Phone.Text);
        cmd.ExecuteNonQuery();
        MessageBox.Show("Record Updated Successfully");
        con.Close();
        DisplayData();
        ClearData();
    }
    else
    {
        MessageBox.Show("Please Select Record to Update");
    }
}
//Delete Record
private void btn_Delete_Click(object sender, EventArgs e)
{
    if(TransactionID!=0)
    {
        cmd = new SqlCommand("delete from Transactions where transactionID=@id",con);
        con.Open();
        cmd.Parameters.AddWithValue("@id",TransactionID);
        cmd.ExecuteNonQuery();
        con.Close();
        MessageBox.Show("Record Deleted Successfully!");
        DisplayData();
        ClearData();
    }
    else
    {
        MessageBox.Show("Please Select Record to Delete");
    }
}

The reference assemblies for framework ".NETFramework,Version=v4.6.2" were not found. To resolve this, install the SDK or Targeting Pack for this framework version or retarget your application to a version of the framework for which you have the SDK or Targeting Pack installed. Note that assemblies will be resolved from the Global Assembly Cache (GAC) and will be used in place of reference assemblies. Therefore your assembly may not be correctly targeted for the framework you intend.	CustomerServiceWeb.Selenium.Test