diff --git a/bootstrap/classaliasmap.php b/bootstrap/classaliasmap.php
index ef26a9e4b..17764a3b1 100644
--- a/bootstrap/classaliasmap.php
+++ b/bootstrap/classaliasmap.php
@@ -1,5 +1,7 @@
 <?php
-
+/**
+ * Class alias map to ensures backwards compatibility.
+ */
 return array(
     'actionsByEmailCoreClass' => ActionsByEmailCoreClass::class,
     'AppDocumentDrive' => AppDocumentDrive::class,
@@ -71,9 +73,10 @@ return array(
     'serverConf' => ServerConf::class,
     'Sessions' => Sessions::class,
     'spoolRun' => SpoolRun::class,
-    'System'    => \ProcessMaker\Core\System::class,
+    'System' => \ProcessMaker\Core\System::class,
     'Tasks' => Tasks::class,
     'ToolBar' => ToolBar::class,
+    'Tree' => PmTree::class,
     'triggerLibrary' => TriggerLibrary::class,
     'Upgrade' => Upgrade::class,
     'workspaceTools' => WorkspaceTools::class,
@@ -81,12 +84,65 @@ return array(
     'wsResponse' => WsResponse::class,
     'XMLConnection' => XMLConnection::class,
     'XMLDB' => XMLDB::class,
+    'XmlForm_Field' => XmlFormField::class,
+    'XmlForm_Field_Button' => XmlFormFieldButton::class,
+    'XmlForm_Field_Caption' => XmlFormFieldCaption::class,
+    'XmlForm_Field_CaptionCurrency' => XmlFormFieldCaptionCurrency::class,
+    'XmlForm_Field_CaptionPercentage' => XmlFormFieldCaptionPercentage::class,
+    'XmlForm_Field_CellMark' => XmlFormFieldCellMark::class,
+    'XmlForm_Field_Checkbox' => XmlFormFieldCheckbox::class,
+    'XmlForm_Field_Checkbox2' => XmlFormFieldCheckbox2::class,
+    'XmlForm_Field_Checkboxpt' => XmlFormFieldCheckboxpt::class,
     'XmlForm_Field_CheckBoxTable' => XmlFormFieldCheckBoxTable::class,
+    'XmlForm_Field_CheckBoxTable' => XmlFormFieldCheckBoxTable::class,
+    'XmlForm_Field_CheckGroup' => XmlFormFieldCheckGroup::class,
+    'XmlForm_Field_CheckGroupView' => XmlFormFieldCheckGroupView::class,
+    'XmlForm_Field_Currency' => XmlFormFieldCurrency::class,
+    'XmlForm_Field_Date' => XmlFormFieldDate::class,
+    'XmlForm_Field_Date2' => XmlFormFieldDate2::class,
+    'XmlForm_Field_Date5' => XmlFormFieldDate5::class,
+    'XmlForm_Field_DateView' => XmlFormFieldDateView::class,
+    'XmlForm_Field_Dropdown' => XmlFormFieldDropdown::class,
+    'XmlForm_Field_Dropdownpt' => XmlFormFieldDropdownpt::class,
+    'XmlForm_Field_DVEditor' => XmlFormFieldDVEditor::class,
+    'XmlForm_Field_FastSearch' => XmlFormFieldFastSearch::class,
+    'XmlForm_Field_File' => XmlFormFieldFile::class,
+    'XmlForm_Field_Grid' => XmlFormFieldGrid::class,
+    'XmlForm_Field_Hidden' => XmlFormFieldHidden::class,
     'XmlForm_Field_hours' => XmlFormFieldHours::class,
+    'XmlForm_Field_Hours' => XmlFormFieldHours::class,
+    'XmlForm_Field_HTML' => XmlFormFieldHTML::class,
     'XmlForm_Field_Image' => XmlFormFieldImage::class,
+    'XmlForm_Field_Image' => XmlFormFieldImage::class,
+    'XmlForm_Field_JavaScript' => XmlFormFieldJavaScript::class,
+    'XmlForm_Field_Label' => XmlFormFieldLabel::class,
+    'XmlForm_Field_Link' => XmlFormFieldLink::class,
+    'XmlForm_Field_Listbox' => XmlFormFieldListbox::class,
+    'XmlForm_Field_Password' => XmlFormFieldPassword::class,
+    'XmlForm_Field_Percentage' => XmlFormFieldPercentage::class,
+    'XmlForm_Field_PopupOption' => XmlFormFieldPopupOption::class,
+    'XmlForm_Field_Print' => XmlFormFieldPrint::class,
+    'XmlForm_Field_RadioGroup' => XmlFormFieldRadioGroup::class,
+    'XmlForm_Field_RadioGroupView' => XmlFormFieldRadioGroupView::class,
+    'XmlForm_Field_Reset' => XmlFormFieldReset::class,
+    'XmlForm_Field_SimpleText' => XmlFormFieldSimpleText::class,
+    'XmlForm_Field_Submit' => XmlFormFieldSubmit::class,
+    'XmlForm_Field_Subtitle' => XmlFormFieldSubtitle::class,
+    'XmlForm_Field_Suggest' => XmlFormFieldSuggest::class,
+    'XmlForm_Field_Text' => XmlFormFieldText::class,
+    'XmlForm_Field_Textarea' => XmlFormFieldTextarea::class,
     'XmlForm_Field_TextareaPM' => XmlFormFieldTextareaPm::class,
+    'XmlForm_Field_TextareaPm' => XmlFormFieldTextareaPm::class,
     'XmlForm_Field_TextPM' => XmlFormFieldTextPm::class,
+    'XmlForm_Field_TextPm' => XmlFormFieldTextPm::class,
+    'XmlForm_Field_Title' => XmlFormFieldTitle::class,
+    'XmlForm_Field_ToolBar' => XmlFormFieldToolBar::class,
     'XmlForm_Field_ToolBar' => XmlFormFieldToolBar::class,
     'XmlForm_Field_toolButton' => XmlFormFieldToolButton::class,
+    'XmlForm_Field_ToolButton' => XmlFormFieldToolButton::class,
+    'XmlForm_Field_WYSIWYGEditor' => XmlFormFieldWYSIWYGEditor::class,
+    'XmlForm_Field_Xmlform' => XmlFormFieldXmlform::class,
+    'XmlForm_Field_XmlMenu' => XmlFormFieldXmlMenu::class,
+    'XmlForm_Field_YesNo' => XmlFormFieldYesNo::class,
     'XMLResult' => XMLResult::class,
 );