App crash, not sure what the error is pointing me too

Whenever I run this program in Andriod studio The app just cashes on the phone.

package com.example.homework1;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.widget.EditText;
import android.widget.RadioGroup;
import android.widget.SeekBar;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
double tipPercent;
SeekBar seekBar;
TextView tipAmountString;
double tipAmountCalc;
TextView totals;
EditText BaseBillTotal;
EditText TipValue;
double baseValueCalc;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TipValue = findViewById(R.id.TipValue);
seekBar = findViewById(R.id.seekBar);
tipAmountString = findViewById(R.id.tipAmountString);
totals = findViewById(R.id.TotalValueScreen);
BaseBillTotal = findViewById(R.id.BillBaseValue);
baseValueCalc = Double.parseDouble(BaseBillTotal.getText().toString());
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
tipAmountString.setText(String.valueOf(progress));
tipAmountCalc = progress*.10;
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});
RadioGroup radioGroup = findViewById(R.id.tipPercentGroup);
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if(checkedId == R.id.radioButton){
tipPercent = .10;
}
else if (checkedId == R.id.radioButton2){
tipPercent = .15;
}
else if (checkedId == R.id.radioButton3){
tipPercent = .18;
}
else if (checkedId == R.id.radioButton4)
{
tipPercent = tipAmountCalc;
}
}
});
TipValue.setText(String.valueOf(tipPercent*100));
totals.setText(String.valueOf(tipPercent * baseValueCalc) );
}
}

This is the error in the console
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.homework1, PID: 7027
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.homework1/com.example.homework1.MainActivity}: java.lang.ClassCastException: androidx.constraintlayout.widget.ConstraintLayout cannot be cast to android.widget.EditText
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassCastException: androidx.constraintlayout.widget.ConstraintLayout cannot be cast to android.widget.EditText
at com.example.homework1.MainActivity.onCreate(MainActivity.java:32)
at android.app.Activity.performCreate(Activity.java:7136)
at android.app.Activity.performCreate(Activity.java:7127)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) 
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:193) 
at android.app.ActivityThread.main(ActivityThread.java:6669) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) 

The stack trace explains exactly what is breaking and why:


java.lang.ClassCastException: androidx.constraintlayout.widget.ConstraintLayout cannot be cast to android.widget.EditText at com.example.homework1.MainActivity.onCreate(MainActivity.java:32)


line 32 of your MainActivity is BaseBillTotal = findViewById(R.id.BillBaseValue);

You have BaseBillTotal defined in your Activity as an EditText, but according to this exception, your layout file has a ConstraintLayout with an id of BillBaseValue, and you can't cast that to an EditText. Double check your layout file and verify the type and ID there.

Check the id of your edit texts. According to the error you might have given the constraint layout the id of BillBaseValue or TipValue instead of the actual edit text in your xml layout.