Question

我有一个使用Tessnet2的应用。当我尝试调用其Init方法时，应用程序失败失败只是糟糕 - 没有异常（ANY），没有任何错误痕迹，甚至没有“发送报告”窗口。该应用程序的流程刚刚落实。

有问题的代码是：

Recogniser = new Tesseract();
Recogniser.SetVariable("tessedit_char_whitelist", Whitelist);
Recogniser.SetVariable("unlv_tilde_crunching", false);
Recogniser.Init(null, "eng", false); // FAILURE IS HERE

可能有用的一些注意事项：

Tessnet2需要 Visual C ++ 2008 Runtime 。不确定它是否应该是msvcm90.dll，msvcm80.dll。
该应用程序是桌面WPF。
开发环境：VS 2008 SP，.NET 3.5 SP1
之前有用过（我想我添加了Web引用来使用SOAP Web服务，但我尝试删除它而没有结果）。
单元测试与无故障完美配合。

从这些观察结果来看，它听起来像WPF应用程序本身的问题。

我只有一条信息是调试期间的输出：

'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.VisualStudio.HostingProcess.Utilities\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.HostingProcess.Utilities.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Windows.Forms\2.0.0.0__b77a5c561934e089\System.Windows.Forms.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System\2.0.0.0__b77a5c561934e089\System.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Drawing\2.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.VisualStudio.HostingProcess.Utilities.Sync\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.HostingProcess.Utilities.Sync.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.VisualStudio.Debugger.Runtime\9.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Debugger.Runtime.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'D:\...\bin\Debug\OcrForm.WinApp.vshost.exe', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Core\3.5.0.0__b77a5c561934e089\System.Core.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\System.EnterpriseServices\2.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Runtime.Serialization\3.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.ServiceModel\3.0.0.0__b77a5c561934e089\System.ServiceModel.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Web.Services\2.0.0.0__b03f5f7f11d50a3a\System.Web.Services.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Xml.Linq\3.5.0.0__b77a5c561934e089\System.Xml.Linq.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Data.DataSetExtensions\3.5.0.0__b77a5c561934e089\System.Data.DataSetExtensions.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Xml\2.0.0.0__b77a5c561934e089\System.Xml.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\UIAutomationProvider\3.0.0.0__31bf3856ad364e35\UIAutomationProvider.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\WindowsBase\3.0.0.0__31bf3856ad364e35\WindowsBase.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_32\PresentationCore\3.0.0.0__31bf3856ad364e35\PresentationCore.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\PresentationFramework\3.0.0.0__31bf3856ad364e35\PresentationFramework.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.  
The thread 0x1784 has exited with code 0 (0x0).
The thread 0x1144 has exited with code 0 (0x0).
The thread 0x16a4 has exited with code 0 (0x0).
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'D:\...\bin\Debug\OcrForm.WinApp.exe', Symbols loaded.
Step into: Stepping over non-user code 'OcrForm.WinApp.App.App'
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\System.Configuration\2.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Step into: Stepping over non-user code 'OcrForm.WinApp.App.InitializeComponent'
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\assembly\GAC_MSIL\PresentationFramework.Classic\3.0.0.0__31bf3856ad364e35\PresentationFramework.Classic.dll', Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
The thread 0x374 has exited with code 0 (0x0).
The thread 0x13cc has exited with code 0 (0x0).
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'D:\...\bin\Debug\OcrForm.dll', Symbols loaded.
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'D:\...\bin\Debug\Commons.dll', Symbols loaded.
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'D:\...\bin\Debug\tessnet2_32.dll', Symbols loaded.
'OcrForm.WinApp.vshost.exe' (Managed): Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.30729.1_x-ww_6f74963e\msvcm90.dll'

应用程序失败时的最后一块：

The program '[5384] OcrForm.WinApp.vshost.exe: Managed' has exited with code 1 (0x1).

更新：我已检查过事件日志。没有任何带有“SideBySide”来源的条目。以下只涉及与此问题相关的条目，但不幸的是，它并没有告诉我很多：

Event Type: Error
Event Source:   .NET Runtime 2.0 Error Reporting
Event Category: None
Event ID:   5000
Date:       28/10/2009
Time:       4:07:57 PM
User:       N/A
Computer:   ARGO11
Description:
EventType clr20r3, P1 ocrform.winapp.exe, P2 1.0.0.0, P3 4ae7d16c, P4 ocrform, P5 1.0.0.0, P6 4ae1333f, P7 10f, P8 1, P9 system.typeinitialization, P10 NIL.

提前感谢任何提示。

Answer 1

查看Windows系统事件日志（开始 - >设置 - >控制面板 - ＆gt;管理 - ＆gt;事件查看器）。可能您会在Windows SideBySide管理器中找到条目。

输出的最后一行显示已加载SideBySide的dll。

我最近遇到过类似的问题。在我们查看事件日志之前，没有提示失败的原因。

Answer 2

我弄明白了这个问题。

简答：使用SaveFileDialog后，应用的工作目录已更改。这导致Tesseract无法找到相关文件。

我为此做了几件事：

创建了一个使用Tessnet2的新WPF应用程序。
开始吧 - ＆gt;它以完全相同的方式失败。
我发现我错过了添加tesseract所需的文件。
添加了它们 - ＆gt;该应用程序开始工作。

转到我的申请表：
我检查了tesseract所需的文件。一切都到位且有效。

因此，必须有其他与无法访问文件相关的内容：

没有权限。
位置不正确。

检查1号 - 一切都很好。
检查第二个 - 所有文件位于相对于应用程序当前目录的正确位置。

看点？但事实证明文件应该与应用程序在同一个工作目录中。

使用SaveFileDialog后，工作目录已更改！

如果我不使用该对话框应用程序我怎么可能从所有“错误信息”中弄明白... ... 希望这会对某人有所帮助。

使用Tessnet2的.NET应用程序失败

2 个答案: