OS: Mac 10.14
Compiler : Visual Studio for Mac 2019
Aspose.Email Ver : 21.4
Language : C#
FromVCard api is working fine with Aspose.email ver 20.11. But when i upgrade to upper version (20.12 or latest 21.4) it starts failing.
This issue is faced in Release mode only. In Debug mode it works fine.
Exception:
System.TypeLoadException: Cannot load type ‘System.String, netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51’.
at . (System.Int32 , , System.Boolean& , System.Boolean ) [0x001f6] in :0
at . (System.Int32 , System.Boolean ) [0x00032] in :0
at . () [0x0002b] in :0
at . (System.Object[] , System.Type[] , System.Type[] , System.Object[] ) [0x00035] in :0
at . (System.IO.Stream , System.String , System.Object[] , System.Type[] , System.Type[] , System.Object[] ) [0x0000f] in :0
at . (System.IO.Stream , System.String , System.Object[] ) [0x00000] in :0
at . (System.IO.Stream , System.String , System.Object[] ) [0x00000] in :0
at Aspose.Email.Mapi.MapiMessageItemBase. () [0x00015] in :0
at Aspose.Email.Mapi.MapiMessageItemBase…ctor () [0x00006] in :0
at Aspose.Email.Mapi.MapiContact…ctor () [0x00000] in :0
at Aspose.Email.Mapi.MapiContact…ctor ( ) [0x00000] in :0
at Aspose.Email.Mapi.MapiContact.FromVCard (System.String filePath, System.Text.Encoding encoding) [0x00029] in :0
at MsgViewer.ViewController.ConvertVCFToCSV (System.String strFilePath, System.String strDestPath) [0x000c6] in <2905cc9dee8b449bae98219eec8b1931>:0 exception caught in VC.SVCFBEC01
Sample Code :
public void ConvertVCFToHTML(string strFilePath, string strDestPath)
{
try
{
FileStream FileStreamObj = new FileStream(strFilePath, FileMode.Open, FileAccess.Read);
StreamReader streamReaderObj = new StreamReader(FileStreamObj);
string LogPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
string strTempVCFFile = string.Concat(LogPath, “/TempVCF.vcf”);
string strRead;
int iStart = 0;
while ((strRead = streamReaderObj.ReadLine()) != null)
{
try
{
if (iStart == 0)
{
int pos = strRead.ToUpper().IndexOf("BEGIN:VCARD");
if (pos != -1)
{
iStart = 1;
File.WriteAllText(strTempVCFFile, strRead, Encoding.UTF8);
File.AppendAllText(strTempVCFFile, "\r\n");
//iCurMessageCountGlobal++;
//this.BeginInvokeOnMainThread(new Action(() => UpdateExtractionCount()));
continue;
}
}
else
{
int pos = strRead.ToUpper().IndexOf("END:VCARD");
if (pos != -1)
{
File.AppendAllText(strTempVCFFile, strRead);
MapiContact mapiMessageItem = MapiContact.FromVCard(strTempVCFFile, Encoding.UTF8); //strFileName
MemoryStream ms = new MemoryStream();
mapiMessageItem.Save(ms, ContactSaveFormat.Msg);
MapiMessage mapiMessage = MapiMessage.FromStream(ms);
MailConversionOptions mCO = new MailConversionOptions();
MailMessage mailMessage = mapiMessage.ToMailMessage(mCO);
string strHTMLFile = string.Concat(strDestPath, "/", mapiMessageItem.NameInfo.DisplayName, ".html");
HtmlSaveOptions htmlSaveOptions = new HtmlSaveOptions();
htmlSaveOptions.CheckBodyContentEncoding = true;
HtmlFormatOptions htmlFormatOptions = HtmlFormatOptions.WriteHeader | HtmlFormatOptions.RenderVCardInfo;
htmlSaveOptions.RenderedContactFields = ContactFieldsSet.NameInfo | ContactFieldsSet.PersonalInfo | ContactFieldsSet.Telephones | ContactFieldsSet.Events | ContactFieldsSet.ElectronicAddresses | ContactFieldsSet.OtherFields | ContactFieldsSet.ProfessionalInfo | ContactFieldsSet.PhysicalAddresses;
htmlSaveOptions.HtmlFormatOptions = htmlFormatOptions;
mailMessage.Save(strHTMLFile, htmlSaveOptions);
if (File.Exists(strTempVCFFile))
{
//iExportedMailCount++;
//iSplitFilesCount++;
//TotExportedCountList[iFileCount] = iExportedMailCount;
//this.BeginInvokeOnMainThread(new Action(() => UpdateExportStatus()));
File.Delete(strTempVCFFile);
}
/*if (bStopFlag == true)
{
break;
}
if (strProductType == "1")
{
if (iExportedMailCount >= 10)
{
break;
}
}*/
iStart = 0;
}
else
{
File.AppendAllText(strTempVCFFile, strRead);
File.AppendAllText(strTempVCFFile, "\r\n");
}
}
}
catch (Exception e)
{
string exp = string.Format("{0} exception caught", e);
//Log.WriteErrorLog(" " + exp + " in VC.SVCFBEC01");
continue;
}
}
}
catch (Exception e)
{
string exp = string.Format("{0} exception caught", e);
//Log.WriteErrorLog(" " + exp + " in VC.SVCFBEC02");
}
}
AllContacts 2.zip (2.1 KB)
Sample vcf is attached.
@sangapankaj,
Thank you for the issue description. I’ve logged the issue in our tracking system with ID EMAILNET-40217. Our development team will investigate this case. I will inform you about any progress.
@sangapankaj,
Our development team investigated the issue.
- Based on the type of exception, it looks like the error is not related to our code, but rather to your application environment. Please clear Nuget’s cache.
- If the issue persists, please share how Aspose.Email was used (via Nuget or a reference). It would be great if you send us a simple test project.
- Also please clarify the Aspose.Email version - this code does not compile with 20.11 because some properties (i. e.
HtmlFormatOptions.RenderVCardInfo) are not present in version 20.11.