We keep getting this error while converting HTML documents to PDF documents
Com.aspose.pdf.internal.ms.System.lh: Invalid operation
at Com.aspose.pdf.internal.l108t.l6if.lI(Unknown Source)
at Com.aspose.pdf.internal.l…...com.aspose.pdf.internal.ms.System.lh: Invalid operation Aspose...HTML documents to PDF documents com.aspose.pdf.internal.ms.System...