Oracle10g “Client\u Text\u IO.File\u Type必须是declard”在PL/SQL Oracle表单中获取此错误

我的代码行是：

PROCEDURE LOAD_DATA IS

FILE_LOG    Client_Text_IO.File_Type;
LINE_LOG    VARCHAR(32767);
v_txt       varchar(32767);
v_counter number(12) := 0;

BEGIN

file_log :=  Client_Text_IO.fopen(file_upload.origin, 'r');

END;

我是第一次使用甲骨文表单。我对此一无所知。我几乎完成了我的工作，但在编译时我遇到了一个错误。完整的错误描述

Error 201 at line 2, column 11
    identifier 'CLIENT_TEXT_IO.FILE_TYPE' must be declared
Error 0 at line 2, column 11
    Item ignored
Error 320 at line 12, column 2
    the declaration of the type of this expression is incomlete or malformed
Error 0 at line 12, column 2
    Statement ignored
Error 320 at line 14, column 3
    the declaration of the type of this expression is incomplete or malformed
Error 0 at line 14, column 3
    Statement ignored
Error 201 at line 20, column 6
    identifier 'V_TEXT' must be declared
Error 0 at line 20, column 3
    Statement ignored
Error 320 at line 24, column 24
    the declaration of the type of this expression is incomplete or malformed
Error 0 at line 30, column 2
    Statement ignored

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您需要将webutil.pll库附加到表单。

是的，它随my project@compile time一起附加。但当我运行它时，它再次产生错误。你能告诉我如何在运行时提供这个库吗。