Android – alertdialog button does not exist

Suddenly (there is no change in the project code) I began to get an error:

java.lang.RuntimeException: Unable to start activity ComponentInfo{<package>}: java.lang.IllegalArgumentException: Button does not exist

The error points to a method that has not been called

private void dialog(String title, String content){
    AlertDialog alertDialog = new AlertDialog.Builder(MainActivity.this).create();
    alertDialog.setTitle(title);
    alertDialog.setMessage(content);
    alertDialog.setCancelable(true);
    alertDialog.setButton(1, "OK", new DialogInterface.OnClickListener() {
           public void onClick(DialogInterface dialog, int which) {
               dialog.dismiss();
               }
            });
    alertDialog.show();
}

I'm trying to copy and use this code in other projects - the results are the same, and it worked not long ago (the same target API, etc.). You know what I'm ignoring?

resolvent:

Do not hard code in setbutton (...). 1. Use the constant in dialoginterface class to specify which button:

DialogInterface.BUTTON_ NEGATIVE

DialogInterface.BUTTON_ POSITIVE

DialogInterface.BUTTON_ NEUTRAL