Index: lldb/source/Commands/CommandObjectTarget.cpp =================================================================== --- lldb/source/Commands/CommandObjectTarget.cpp +++ lldb/source/Commands/CommandObjectTarget.cpp @@ -425,8 +425,12 @@ } } else { result.AppendErrorWithFormatv( - "Unable to find process plug-in for core file '{0}'\n", + "Couldn't recognize core file format of '{0}'\n", core_file.GetPath()); + result.AppendMessage( + "note: If the file is a core file in a compressed file archive, " + "it first needs to be manually extracted before it can be " + "loaded."); result.SetStatus(eReturnStatusFailed); } } else {