title: AttributeError: 'Ui_MainWindow' object has no attribute 'setCentralWidget'
body: <p>I am still working on the GUI for my Database and now i have a different error:</p>
  
  <p></p>
  
  <pre><code>Traceback (most recent call last):
    File "G:\Python\Database Kast Thuis\PyQt Test\MainMenu_ui.py", line 84, in &lt;module&gt;
      ex = Ui_MainWindow()
    File "G:\Python\Database Kast Thuis\PyQt Test\MainMenu_ui.py", line 16, in __init__
      self.setupUi(self)
    File "G:\Python\Database Kast Thuis\PyQt Test\MainMenu_ui.py", line 55, in setupUi
      MainWindow.setCentralWidget(self.centralwidget)
  AttributeError: 'Ui_MainWindow' object has no attribute 'setCentralWidget'
  </code></pre>
  
  <p>I dont understand a thing about PyQt so i dont understand what the problem is.</p>
  
  <p>The code is:
  (This is the edited version, Raw Version is Posted below)</p>
  
  <pre><code># -*- coding: utf-8 -*-
  
  # Form implementation generated from reading ui file 'Main_Menu.ui'
  #
  # Created by: PyQt5 UI code generator 5.5.1
  #
  # WARNING! All changes made in this file will be lost!
  
  from PyQt5 import QtCore, QtGui, QtWidgets
  from PyQt5.QtWidgets import QApplication, QMainWindow
  import sys
  
  class Ui_MainWindow(QtWidgets.QWidget):
      def __init__(self):
          QtWidgets.QWidget.__init__(self)
          self.setupUi(self)
  
      def setupUi(self, MainWindow):
          MainWindow.setObjectName("MainWindow")
          MainWindow.resize(387, 317)
          icon = QtGui.QIcon()
          icon.addPixmap(QtGui.QPixmap("C:/Users/Natan Samuel Geldorp.Remytop-PC/Documents/music-note-sound-256.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
          MainWindow.setWindowIcon(icon)
          self.centralwidget = QtWidgets.QWidget(MainWindow)
          self.centralwidget.setObjectName("centralwidget")
          self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
          self.verticalLayout.setObjectName("verticalLayout")
          self.gridLayout = QtWidgets.QGridLayout()
          self.gridLayout.setObjectName("gridLayout")
          self.ButtonRemove = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonRemove.setObjectName("ButtonRemove")
          self.gridLayout.addWidget(self.ButtonRemove, 10, 0, 1, 1)
          self.ButtonShowAll = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonShowAll.setObjectName("ButtonShowAll")
          self.gridLayout.addWidget(self.ButtonShowAll, 7, 0, 1, 1)
          self.ButtonShowSpecific = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonShowSpecific.setObjectName("ButtonShowSpecific")
          self.gridLayout.addWidget(self.ButtonShowSpecific, 8, 0, 1, 1)
          self.Text = QtWidgets.QLabel(self.centralwidget)
          self.Text.setObjectName("Text")
          self.gridLayout.addWidget(self.Text, 1, 0, 1, 1)
          self.label = QtWidgets.QLabel(self.centralwidget)
          self.label.setObjectName("label")
          self.gridLayout.addWidget(self.label, 3, 0, 1, 1)
          self.ButtonAdd = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonAdd.setObjectName("ButtonAdd")
          self.gridLayout.addWidget(self.ButtonAdd, 9, 0, 1, 1)
          self.ButtonExit = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonExit.setObjectName("ButtonExit")
          self.gridLayout.addWidget(self.ButtonExit, 4, 0, 1, 1)
          self.label_2 = QtWidgets.QLabel(self.centralwidget)
          self.label_2.setObjectName("label_2")
          self.gridLayout.addWidget(self.label_2, 2, 0, 1, 1)
          self.verticalLayout.addLayout(self.gridLayout)
          MainWindow.setCentralWidget(self.centralwidget)
          self.menubar = QtWidgets.QMenuBar(MainWindow)
          self.menubar.setGeometry(QtCore.QRect(0, 0, 387, 21))
          self.menubar.setObjectName("menubar")
          MainWindow.setMenuBar(self.menubar)
          self.statusbar = QtWidgets.QStatusBar(MainWindow)
          self.statusbar.setObjectName("statusbar")
          MainWindow.setStatusBar(self.statusbar)
  
          self.retranslateUi(MainWindow)
          QtCore.QMetaObject.connectSlotsByName(MainWindow)
  
      def retranslateUi(self, MainWindow):
          _translate = QtCore.QCoreApplication.translate
          MainWindow.setWindowTitle(_translate("MainWindow", "Main Menu"))
          self.ButtonRemove.setText(_translate("MainWindow", "Remove an album"))
          self.ButtonShowAll.setText(_translate("MainWindow", "Show all registerd albums"))
          self.ButtonShowSpecific.setText(_translate("MainWindow", "Show a specific album"))
          self.Text.setText(_translate("MainWindow", "Welcome to the MusicDatabase Version 2.1-2017"))
          self.label.setText(_translate("MainWindow", "Please select one of the options below."))
          self.ButtonAdd.setText(_translate("MainWindow", "Add an album"))
          self.ButtonExit.setText(_translate("MainWindow", "Exit"))
          self.label_2.setText(_translate("MainWindow", "Authors: N.S. Geldorp &amp; H. Nahumury"))
          self.ButtonExit.clicked.connect(self.ButtonExit)
  
      def ButtonExit(self):
          exit()
  if __name__ == "__main__":
      app = QtWidgets.QApplication(sys.argv)
      ex = Ui_MainWindow()
      ex.show()
      sys.exit(app.exec_())
  </code></pre>
  
  <p>Does anyone see the problem?</p>
  
  <p>-Natan</p>
  
  <p>Posting Raw Convert:</p>
  
  <pre><code># -*- coding: utf-8 -*-
  
  # Form implementation generated from reading ui file 'Main_Menu.ui'
  #
  # Created by: PyQt5 UI code generator 5.5.1
  #
  # WARNING! All changes made in this file will be lost!
  
  from PyQt5 import QtCore, QtGui, QtWidgets
  
  class Ui_MainWindow(object):
      def setupUi(self, MainWindow):
          MainWindow.setObjectName("MainWindow")
          MainWindow.resize(387, 317)
          icon = QtGui.QIcon()
          icon.addPixmap(QtGui.QPixmap("C:/Users/Natan Samuel Geldorp.Remytop-PC/Documents/music-note-sound-256.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
          MainWindow.setWindowIcon(icon)
          self.centralwidget = QtWidgets.QWidget(MainWindow)
          self.centralwidget.setObjectName("centralwidget")
          self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
          self.verticalLayout.setObjectName("verticalLayout")
          self.gridLayout = QtWidgets.QGridLayout()
          self.gridLayout.setObjectName("gridLayout")
          self.ButtonRemove = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonRemove.setObjectName("ButtonRemove")
          self.gridLayout.addWidget(self.ButtonRemove, 10, 0, 1, 1)
          self.ButtonShowAll = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonShowAll.setObjectName("ButtonShowAll")
          self.gridLayout.addWidget(self.ButtonShowAll, 7, 0, 1, 1)
          self.ButtonShowSpecific = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonShowSpecific.setObjectName("ButtonShowSpecific")
          self.gridLayout.addWidget(self.ButtonShowSpecific, 8, 0, 1, 1)
          self.Text = QtWidgets.QLabel(self.centralwidget)
          self.Text.setObjectName("Text")
          self.gridLayout.addWidget(self.Text, 1, 0, 1, 1)
          self.label = QtWidgets.QLabel(self.centralwidget)
          self.label.setObjectName("label")
          self.gridLayout.addWidget(self.label, 3, 0, 1, 1)
          self.ButtonAdd = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonAdd.setObjectName("ButtonAdd")
          self.gridLayout.addWidget(self.ButtonAdd, 9, 0, 1, 1)
          self.ButtonExit = QtWidgets.QPushButton(self.centralwidget)
          self.ButtonExit.setObjectName("ButtonExit")
          self.gridLayout.addWidget(self.ButtonExit, 4, 0, 1, 1)
          self.label_2 = QtWidgets.QLabel(self.centralwidget)
          self.label_2.setObjectName("label_2")
          self.gridLayout.addWidget(self.label_2, 2, 0, 1, 1)
          self.verticalLayout.addLayout(self.gridLayout)
          MainWindow.setCentralWidget(self.centralwidget)
          self.menubar = QtWidgets.QMenuBar(MainWindow)
          self.menubar.setGeometry(QtCore.QRect(0, 0, 387, 21))
          self.menubar.setObjectName("menubar")
          MainWindow.setMenuBar(self.menubar)
          self.statusbar = QtWidgets.QStatusBar(MainWindow)
          self.statusbar.setObjectName("statusbar")
          MainWindow.setStatusBar(self.statusbar)
  
          self.retranslateUi(MainWindow)
          QtCore.QMetaObject.connectSlotsByName(MainWindow)
  
      def retranslateUi(self, MainWindow):
          _translate = QtCore.QCoreApplication.translate
          MainWindow.setWindowTitle(_translate("MainWindow", "Main Menu"))
          self.ButtonRemove.setText(_translate("MainWindow", "Remove an album"))
          self.ButtonShowAll.setText(_translate("MainWindow", "Show all registerd albums"))
          self.ButtonShowSpecific.setText(_translate("MainWindow", "Show a specific album"))
          self.Text.setText(_translate("MainWindow", "Welcome to the MusicDatabase Version 2.1-2017"))
          self.label.setText(_translate("MainWindow", "Please select one of the options below."))
          self.ButtonAdd.setText(_translate("MainWindow", "Add an album"))
          self.ButtonExit.setText(_translate("MainWindow", "Exit"))
          self.label_2.setText(_translate("MainWindow", "Authors: N.S. Geldorp &amp; H. Nahumury"))
  </code></pre>