SSRS 2019报表导出PDF报错求助，Excel导出正常

问题描述 #

将SSRS报表/Test/TestReport导出为PDF时出现报错，Excel导出功能正常。报错堆栈信息如下：

RenderFromSession('/Test/TestReport')
reportrendering!ReportServer_0-12 e ERROR: Throwing Microsoft.ReportingServices.ReportProcessing.UnhandledReportRenderingException: , Microsoft.ReportingServices.ReportProcessing.UnhandledReportRenderingException: An error occurred during rendering of the report. ---> Microsoft.ReportingServices.OnDemandReportRendering.ReportRenderingException: An error occurred during rendering of the report. ---> System.Runtime.InteropServices.COMException: Error HRESULT E_FAIL has been returned from a call to a COM component.
   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at Microsoft.ReportingServices.Rendering.RichText.TextRun.ShapeAndPlace(Win32DCSafeHandle hdc, FontCache fontCache)
   at Microsoft.ReportingServices.Rendering.RichText.LineBreaker.GetLine(Paragraph paragraph, TextLine line, Win32DCSafeHandle hdc, FontCache fontCache, FlowContext flowContext, Single left, Single right, Single height, Stack`1 lineRunsIndex, Stack`1 lineRunsCharIndex, Int32 lineIndents)
   at Microsoft.ReportingServices.Rendering.RichText.LineBreaker.FlowParagraph(Paragraph paragraph, Directions direction, Win32DCSafeHandle hdc, Single dpiX, FontCache fontCache, FlowContext flowContext, Boolean keepLines, SizeF flowContextSize, Int32& contentOffset)
   at Microsoft.ReportingServices.Rendering.RichText.LineBreaker.Flow(TextBox textBox, Win32DCSafeHandle hdc, Single dpiX, FontCache fontCache, FlowContext flowContext, Boolean keepLines, Single& height)
   at Microsoft.ReportingServices.Rendering.RichText.LineBreaker.Flow(TextBox textBox, Graphics g, FontCache fontCache, FlowContext flowContext, Boolean keepLines, Single& height)
   at Microsoft.ReportingServices.Rendering.RichText.TextBox.MeasureFullHeight(TextBox textBox, Graphics g, FontCache fontCache, FlowContext flowContext, Single& contentHeight)
   at Microsoft.ReportingServices.Rendering.HPBProcessing.TextBox.CalculateVerticalSize(PageContext pageContext)
   at Microsoft.ReportingServices.Rendering.HPBProcessing.TextBox.DetermineVerticalSize(PageContext pageContext, Double topInParentSystem, Double bottomInParentSystem, List`1 ancestors, Boolean& anyAncestorHasKT, Boolean hasUnpinnedAncestors)
   at Microsoft.ReportingServices.Rendering.HPBProcessing.PageItem.CalculateVertical(PageContext pageContext, Double topInParentSystem, Double bottomInParentSystem, PageItem[] siblings, List`1 ancestors, Boolean& anyAncestorHasKT, Boolean hasUnpinnedAncestors, Nullable`1 sourceWidth)
   at Microsoft.ReportingServices.Rendering.HPBProcessing.PageItemContainer.DetermineContentVerticalSize(PageContext pageContext, Double topInParentSystem, Double bottomInParentSystem, List`1 ancestors, Boolean& anyAncestorHasKT, Boolean hasUnpinnedAncestors, Boolean resolveState, Boolean resolveItem)
   at Microsoft.ReportingServices.Rendering.HPBProcessing.PageItemContainer.DetermineVerticalSize(PageContext pageContext, Double topInParentSystem, Double bottomInParentSystem, List`1 ancestors, Boolean& anyAncestorHasKT, B
library!ReportServer_0-/11/2024-11:13:44:: e ERROR: Report server dump occured. Exception: Microsoft.ReportingServices.ReportProcessing.UnhandledReportRenderingException: An error occurred during rendering of the report. ---> Microsoft.ReportingServices.OnDemandReportRendering.ReportRenderingException: An error occurred during rendering of the report. ---> System.Runtime.InteropServices.COMException: Error HRESULT E_FAIL has been returned from a call to a COM component., Message: , Unhandled Exception: False
library!ReportServer_0-/11/2024-11:13:44:: e ERROR: Report server unique dump occured. Exception: Microsoft.ReportingServices.ReportProcessing.UnhandledReportRenderingException: An error occurred during rendering of the report. ---> Microsoft.ReportingServices.OnDemandReportRendering.ReportRenderingException: An error occurred during rendering of the report. ---> System.Runtime.InteropServices.COMException: Error HRESULT E_FAIL has been returned from a call to a COM component., Message: , Unhandled Exception: False
library!ReportServer_0-/11/2024-11:13:50:: i INFO: Dump result: External dump process return code 0x20000001.
External dump process returned no errors.

排查与解决步骤 #

1. 检查报表字体兼容性 #

从报错堆栈看，问题出在富文本渲染的字体处理环节：

• 确认报表中使用的所有字体（包括特殊字体、非系统默认字体）已在报表服务器上安装。
• 临时替换报表中的特殊字体为服务器默认字体（如Arial、宋体），测试PDF导出是否恢复正常。

2. 调整文本框布局属性 #

• 检查报表内所有文本框的CanGrow、CanShrink属性，尝试设置为False，避免渲染时因文本尺寸计算异常触发COM调用失败。
• 确保文本框宽度足够容纳内容，减少因强制换行导致的布局计算错误。

3. 清理富文本格式 #

如果报表使用了富文本（RTF）内容：

• 清除文本框中的富文本格式，改为纯文本后测试导出。
• 检查富文本中是否存在无效标记、嵌套样式，手动清理或重新设置格式。

4. 验证服务器资源与权限 #

• 确认报表服务器有充足的内存、CPU资源，避免PDF渲染时资源不足导致异常。
• 确保报表服务运行账户拥有访问系统字体目录（通常为C:\Windows\Fonts）的权限。

5. 更新SSRS与.NET环境 #

• 安装最新的SSRS累积更新（CU），修复官方已知的PDF渲染bug。
• 确保服务器上的.NET框架版本符合对应SSRS版本的要求，必要时更新至指定版本。

6. 定位问题元素 #

• 创建仅包含基础内容的简化版报表，测试PDF导出是否正常，逐步添加原报表的内容，定位到触发报错的具体元素（如某文本框、某段数据集内容）。

内容的提问来源于stack exchange，提问作者Balamurugan Panneerselvam