Child Item

API v2 .NET, problem with upload session

Here is my code. If the file is small, the UploadAsync function is called and works flawlessly.

However, for larger file, the chunk upload fails. I get a JSON error the first time UploadSessionAppendAsync is called.

Any idea what could be wrong ?

private async Task Upload(string file, string targetPath)
{
const int chunkSize = 1024*1024;
CurrentFileStream = File.Open(file, FileMode.Open, FileAccess.Read);

if(CurrentFileStream.Length <= chunkSize)
{
System.Diagnostics.Trace.WriteLine("Start one-shot upload");
await Client.Files.UploadAsync(targetPath, body: CurrentFileStream);
}

else
{
System.Diagnostics.Trace.WriteLine("Start chunk upload");
await ChunkUpload(targetPath, chunkSize);
}
}

private async Task ChunkUpload(String path, int chunkSize)
{
int numChunks = (int)Math.Ceiling((double)CurrentFileStream.Length / chunkSize);

byte[] buffer = new byte[chunkSize];
string sessionId = null;

for(var idx = 0; idx < numChunks; idx++)
{
var byteRead = CurrentFileStream.Read(buffer, 0, chunkSize);
System.Diagnostics.Trace.WriteLine(byteRead.ToString());

using(MemoryStream memStream = new MemoryStream(buffer, 0, byteRead))
{
if(idx == 0)
{
System.Diagnostics.Trace.WriteLine("Session start");
var result = await Client.Files.UploadSessionStartAsync(memStream);
sessionId = result.SessionId;
}

else
{
System.Diagnostics.Trace.WriteLine("Upload cusor");
UploadSessionCursor cursor = new UploadSessionCursor(sessionId, (ulong)(chunkSize * idx));

if(idx == numChunks - 1)
{
System.Diagnostics.Trace.WriteLine("Session finish");
await Client.Files.UploadSessionFinishAsync(cursor, new CommitInfo(path), memStream);
}

else
{
System.Diagnostics.Trace.WriteLine("Session append");
await Client.Files.UploadSessionAppendAsync(cursor, memStream);
}
}
}
}
}

************** Exception Text **************
System.InvalidOperationException: Invalid json token. Expect start object
at Dropbox.Api.Babel.StructDecoder`1.EnsureStartObject(IJsonReader reader)
at Dropbox.Api.Babel.StructDecoder`1.Decode(IJsonReader reader)
at Dropbox.Api.Babel.JsonReader.Read[T](String json, IDecoder`1 decoder)
at Dropbox.Api.DropboxRequestHandler.<Dropbox.Api.Babel.ITransport.SendUploadRequestAsync>d__5`3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.MainForm.<ChunkUpload>d__25.MoveNext() in c:\Dropbox\Archivist\Archivist\Form1.cs:line 290
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.MainForm.<Upload>d__21.MoveNext() in c:\Dropbox\Archivist\Archivist\Form1.cs:line 251
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.MainForm.<UploadHighlightedButton_Click>d__1a.MoveNext() in c:\Dropbox\Archivist\Archivist\Form1.cs:line 233
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>b__4(Object state)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
Archivist
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Archivist.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34238 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
Accessibility
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34234 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Dropbox.Api
Assembly Version: 0.1.5801.29559
Win32 Version: 0.1.0.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Dropbox.Api.DLL
----------------------------------------
System.Net.Http.WebRequest
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net.Http.WebRequest/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.Http.WebRequest.dll
----------------------------------------
System.Net.Http
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net.Http/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.Http.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Threading.Tasks
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Threading.Tasks/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Threading.Tasks.dll
----------------------------------------
Microsoft.Threading.Tasks
Assembly Version: 1.0.12.0
Win32 Version: 1.0.168.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Microsoft.Threading.Tasks.DLL
----------------------------------------
Newtonsoft.Json
Assembly Version: 7.0.0.0
Win32 Version: 7.0.1.18622
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Newtonsoft.Json.DLL
----------------------------------------
Microsoft.Threading.Tasks.Extensions
Assembly Version: 1.0.12.0
Win32 Version: 1.0.168.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Microsoft.Threading.Tasks.Extensions.DLL
----------------------------------------
System.Net
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.dll
----------------------------------------

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Abuse

Comments

Greg-DB

Thanks for the report! This looks like a bug in the SDK. We're looking into it.

Jonathan V.5

Thanks ! Please tell me if you need anything else...

Greg-DB

This should be fixed in version 2.0.2 of the SDK, just released to NuGet. Please update to that and let me know if you're still having trouble. Thanks!

Jonathan V.5

Yep, that fixed it. Everything works now. Thanks for the quick fix !

Jonathan V.5

Hello, I think I found a new bug.

If I try to do a chunk upload on a file with some special characters, the UploadSessionFinishAsync function fails. The file can be uploaded just fine with the desktop client or web interface. Other files with regular ASCII characters upload just fine.

Example of file names causing problems :
03-Une Année sans Lumière.mp3
08-Haïti.mp3

Thanks,

Greg-DB

Thanks for the report! For reference, to make sure we can reproduce what you're seeing, what exception/error message are you getting?

Jonathan V.5

Dropbox.Api.BadInputException: Error in call to API function "files/upload_session/finish": HTTP header "Dropbox-API-Arg": could not decode input as JSON
at Microsoft.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at Microsoft.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)
at Microsoft.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Dropbox.Api.DropboxRequestHandler.<Dropbox.Api.Babel.ITransport.SendUploadRequestAsync>d__5`3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.UploadForm.<ChunkUpload>d__9.MoveNext() in c:\Dropbox\Archivist\Archivist\UploadForm.cs:line 205
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.UploadForm.<Upload>d__5.MoveNext() in c:\Dropbox\Archivist\Archivist\UploadForm.cs:line 152
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.UploadForm.<UploadForm_Shown>d__0.MoveNext() in c:\Dropbox\Archivist\Archivist\UploadForm.cs:line 72
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>b__4(Object state)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
Archiviste
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Archiviste.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34238 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34234 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Net.Http.WebRequest
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net.Http.WebRequest/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.Http.WebRequest.dll
----------------------------------------
System.Net.Http
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net.Http/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.Http.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
Dropbox.Api
Assembly Version: 0.1.5805.22713
Win32 Version: 0.1.0.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Dropbox.Api.DLL
----------------------------------------
System.Threading.Tasks
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Threading.Tasks/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Threading.Tasks.dll
----------------------------------------
Microsoft.Threading.Tasks
Assembly Version: 1.0.12.0
Win32 Version: 1.0.168.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Microsoft.Threading.Tasks.DLL
----------------------------------------
Newtonsoft.Json
Assembly Version: 7.0.0.0
Win32 Version: 7.0.1.18622
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Newtonsoft.Json.DLL
----------------------------------------
Microsoft.Threading.Tasks.Extensions
Assembly Version: 1.0.12.0
Win32 Version: 1.0.168.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Microsoft.Threading.Tasks.Extensions.DLL
----------------------------------------
System.Net
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.dll
----------------------------------------

Jonathan V.5

Or this one :

Dropbox.Api.RetryException: <!DOCTYPE html>
<html>
<head><title>Dropbox - 5xx</title>
<link href="//www.dropbox.com/static/css/error.css" rel="stylesheet" type="text/css"/>
<link rel="shortcut icon" href="//www.dropbox.com/static/images/favicon.ico"/>
</head>
<body>
<div class="figure">
<img src="//www.dropbox.com/static/images/sickbox.png" alt="Error: 5xx"/>
</div>
<div id="errorbox">
<h1>Error (5xx)</h1>Something went wrong. Don't worry, your files are still safe and the Dropboxers have been notified. Check out our <a href="https://www.dropbox.com/help">Help Center</a> and <a href="https://forums.dropbox.com">forums</a> for help, or head back to <a href="https://www.dropbox.com/home">home</a>.
</div>

</body>
</html>

at Microsoft.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at Microsoft.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)
at Microsoft.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Dropbox.Api.DropboxRequestHandler.<Dropbox.Api.Babel.ITransport.SendUploadRequestAsync>d__5`3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.UploadForm.<ChunkUpload>d__9.MoveNext() in c:\Dropbox\Archivist\Archivist\UploadForm.cs:line 205
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.UploadForm.<Upload>d__5.MoveNext() in c:\Dropbox\Archivist\Archivist\UploadForm.cs:line 152
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Archivist.UploadForm.<UploadForm_Shown>d__0.MoveNext() in c:\Dropbox\Archivist\Archivist\UploadForm.cs:line 72
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>b__4(Object state)

************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
Archiviste
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Archiviste.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34238 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34234 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Net.Http.WebRequest
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net.Http.WebRequest/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.Http.WebRequest.dll
----------------------------------------
System.Net.Http
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net.Http/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.Http.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
Dropbox.Api
Assembly Version: 0.1.5805.22713
Win32 Version: 0.1.0.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Dropbox.Api.DLL
----------------------------------------
System.Threading.Tasks
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Threading.Tasks/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Threading.Tasks.dll
----------------------------------------
Microsoft.Threading.Tasks
Assembly Version: 1.0.12.0
Win32 Version: 1.0.168.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Microsoft.Threading.Tasks.DLL
----------------------------------------
Newtonsoft.Json
Assembly Version: 7.0.0.0
Win32 Version: 7.0.1.18622
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Newtonsoft.Json.DLL
----------------------------------------
Microsoft.Threading.Tasks.Extensions
Assembly Version: 1.0.12.0
Win32 Version: 1.0.168.0
CodeBase: file:///C:/Dropbox/Archivist/Archivist/bin/Release/Microsoft.Threading.Tasks.Extensions.DLL
----------------------------------------
System.Net
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.34209
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Net/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.dll
----------------------------------------

Greg-DB

Thanks! I can reproduce the BadInputException, so we'll into it. (The RetryException should just be a transient server issue, unrelated to the path with special characters.)

Greg-DB

This should be fixed now in version 2.0.3 of the SDK, just released. Please give that a try and let me know if you're still having trouble.

Jonathan V.5

Upload works now, thanks for the quick fixes.

Priya R.3

I have started to get upload error in my windows service which uses dropbox api. It was running fine from last one month and first time I have encountered the issue. I have limited error text captured via service which i am posting below.

Any hint why it is happening. File size is 6 MBand it is a pdf file.

----------------------ERROR TEXT---------------------------

---------------- Message ---------------
A task was canceled.
--------- Stack Trace ---------
at Microsoft.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at Microsoft.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)
at Dropbox.Api.DropboxRequestHandler.<Dropbox.Api.Babel.ITransport.SendUploadRequestAsync>d__5`3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at DropBoxService.DropBoxLocation.VB$StateMachine_0_Upload.MoveNext()
------------ Target Site ---------
Void ThrowForNonSuccess(System.Threading.Tasks.Task)
----------------System.Threading.Tasks.TaskCanceledException: A task was canceled.
at Microsoft.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at Microsoft.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task)
at Dropbox.Api.DropboxRequestHandler.<Dropbox.Api.Babel.ITransport.SendUploadRequestAsync>d__5`3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at DropBoxService.DropBoxLocation.VB$StateMachine_0_Upload.MoveNext()

Greg-DB

Hi Priya, please start a new thread with the steps to reproduce the issue, the relevant code snippet(s), and the version number of the SDK you're using, so that we can look into it without spamming this old thread:

https://www.dropboxforum.com/hc/en-us/community/posts/new?community_post%5Btopic_id%5D=200209245

Thanks in advance!