我無法在delphi xe2中使用jpeg

Question

我想在我的delphi vcl應用程序中使用Jpeg圖像但是delphi給我這個錯誤信息，怎么能解決這個問題呢？

[DCC Error] Vcl.Imaging.jpeg.pas(747): E1026 File not found: 'jdapimin.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(748): E1026 File not found: 'jmemmgr.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(749): E1026 File not found: 'jmemnobs.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(750): E1026 File not found: 'jdinput.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(751): E1026 File not found: 'jdatasrc.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(752): E1026 File not found: 'jdapistd.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(753): E1026 File not found: 'jdmaster.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(754): E1026 File not found: 'jdphuff.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(755): E1026 File not found: 'jdhuff.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(756): E1026 File not found: 'jdmerge.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(757): E1026 File not found: 'jdcolor.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(758): E1026 File not found: 'jquant1.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(759): E1026 File not found: 'jquant2.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(760): E1026 File not found: 'jdmainct.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(761): E1026 File not found: 'jdcoefct.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(762): E1026 File not found: 'jdpostct.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(763): E1026 File not found: 'jddctmgr.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(764): E1026 File not found: 'jdsample.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(765): E1026 File not found: 'jidctflt.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(766): E1026 File not found: 'jidctfst.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(767): E1026 File not found: 'jidctint.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(768): E1026 File not found: 'jidctred.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(769): E1026 File not found: 'jdmarker.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(770): E1026 File not found: 'jutils.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(771): E1026 File not found: 'jcomapi.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(772): E1026 File not found: 'jdatadst.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(773): E1026 File not found: 'jcparam.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(774): E1026 File not found: 'jcapistd.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(775): E1026 File not found: 'jcapimin.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(776): E1026 File not found: 'jcinit.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(777): E1026 File not found: 'jcmarker.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(778): E1026 File not found: 'jcmaster.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(779): E1026 File not found: 'jcmainct.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(780): E1026 File not found: 'jcprepct.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(781): E1026 File not found: 'jccoefct.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(782): E1026 File not found: 'jccolor.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(783): E1026 File not found: 'jcsample.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(784): E1026 File not found: 'jcdctmgr.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(785): E1026 File not found: 'jcphuff.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(786): E1026 File not found: 'jfdctint.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(787): E1026 File not found: 'jfdctfst.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(788): E1026 File not found: 'jfdctflt.obj'
[DCC Error] Vcl.Imaging.jpeg.pas(789): E1026 File not found: 'jchuff.obj'

Answer 1

Delphi XE2沒有附帶名為Vcl.Imaging.jpeg.pas的單元。 它附帶一個名為Vcl.Imaging.jpeg.dcu的預編譯DCU文件。 您需要鏈接預編譯的DCU，而不是嘗試編譯VCL單元。 只有在嘗試從源編譯單元時才會出現錯誤消息。 如果將預編譯的DCU傳遞給鏈接器，則無法獲得此消息。

我懷疑你的.dpr文件包含對名為Vcl.Imaging.jpeg.pas的文件的Vcl.Imaging.jpeg.pas 。 通過從.dpr文件中刪除對Vcl.Imaging.jpeg.pas的引用來解決此問題。 另一種解釋是您的搜索路徑中有一個名為Vcl.Imaging.jpeg.pas的源文件。

Answer 2

DevExpress論壇的最佳解決方案：

要解決此問題，請使用Project-> Options-> Delphi編譯器 - > Unit scope names菜單選項將Vcl.Imaging名稱空間添加到應用程序。

Answer 3

找到這些obj文件所在的目錄。 確保該目錄顯示在項目的搜索路徑中 。 （它們不是您自己要編譯的文件。）

如果您的Delphi安裝中沒有這些obj文件，請檢查安裝DVD。