delphi - installing JVCL (3.45) for XE2 error when loading the group project -

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I have installed JCL and I have some problems with the JVCL (Release 3.45) installation . If I load the " D16 Packages.groupproj " group project file, then I get a group of popup warnings about missing classes, such as 

  TJvContextProvider TJvSendMailAction TJvCendListBox TJvControlCollapseAction TJvFormStorage TJvListBox TJvLabel TJvBrowserForFolderAction TJvSpinEdit TJvFullColorCircle

It was already reported already in threads, but I did not get any comment about how to handle this problem here .

I am grateful if someone can provide me with some useful hints here Thank you in advance for your important help.


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