Web アプリケーションを richfaces 3.3.2 から 4.0.0 に移行しようとしているので、web.xml ファイルで必要なものを変更しました (サーブレット マッピング ".xhtml" と Ajax4jsf フィルターを削除しました)。また、richfaces 3 jar を 4 番目のバージョンに変更しましたが、エラーが発生して解決方法がわかりません。
The import org.ajax4jsf cannot be resolved
The import org.ajax4jsf cannot be resolved
The import org.ajax4jsf cannot be resolved
The import org.richfaces cannot be resolved
The import org.richfaces cannot be resolved
The import org.richfaces cannot be resolved
Incompatible conditional operand types UIComponent and UICalendar
UICalendar cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
Incompatible conditional operand types UIViewRoot and AjaxViewRoot
AjaxViewRoot cannot be resolved to a type
AjaxViewRoot cannot be resolved to a type
org.ajax4jsf cannot be resolved to a type
EventsQueue cannot be resolved to a type
HtmlAjaxSupport cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
Incompatible conditional operand types UIComponent and HtmlCalendar
HtmlCalendar cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
HtmlToolTip cannot be resolved to a type
誰か助けてくれませんか？