Error while uploading file

[HakanL]

Description

Getting this error:

Error while uploading file. Object reference not set to an instance of an object.
   at VsLinuxDebugger.Core.SshTool.<>c__DisplayClass22_0.<PayloadCompressAndUploadAsync>b__1()
   at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at VsLinuxDebugger.Core.SshTool.<PayloadCompressAndUploadAsync>d__22.MoveNext()

Severity (1-5)

1=Low (annoyance), 5=High (crashes visual studio) 4 - can't use the extension

Steps To Reproduce

Steps to reproduce the behavior: I'm just clicking deploy and it happens during upload

Expected Behavior

The upload should be successful

Output

22:02:24.706: Project [success=True]: ..\..\MagnusEngine\MagnusEngine\MagnusEngine.csproj
22:02:24.801: Project [success=True]: BusinessLogic\BusinessLogic.csproj
22:02:25.451: Project [success=True]: DMXCore100.Linux\DMXCore100.Linux.csproj
22:02:25.475: Build was successful
22:02:31.411: Connected to root@a487250.local:22 via SSH and SCP
22:02:31.596: BASH> uname -m
22:02:31.615: BASH> which curl ; echo $?
22:02:31.631: BASH> [ -d ~/.vs-debugger/vs2022 ] || curl -ksSL https://aka.ms/getvsdbgsh | bash /dev/stdin -v latest -l ~/.vs-debugger/vs2022
22:02:31.645: Returned: 
22:02:31.645: BASH> mkdir -p ./VSLinuxDbg
22:02:31.662: BASH> sudo chown -R root ./VSLinuxDbg
22:02:31.702: BASH> rm -rf ./VSLinuxDbg/DMXCore100.Linux/{*,.*}
22:02:31.717: BASH> mkdir -p ./VSLinuxDbg/DMXCore100.Linux
22:02:31.732: Destination Tar.GZ: './VSLinuxDbg/DMXCore100.Linux/vsldBuildContents.tar.gz'
22:02:31.732: Getting bin files for transfer...
22:02:31.761: Compressing files for transfer...
22:02:52.276: Update file count: 572; File Size: [233597785 bytes] of Total Files: 572 [233597785 bytes] need to be updated
22:02:52.276: Uploading...
22:02:52.277: Error while uploading file. Object reference not set to an instance of an object.
   at VsLinuxDebugger.Core.SshTool.<>c__DisplayClass22_0.<PayloadCompressAndUploadAsync>b__1()
   at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at VsLinuxDebugger.Core.SshTool.<PayloadCompressAndUploadAsync>d__22.MoveNext()
22:02:52.277: BASH> set -e;cd "./VSLinuxDbg/DMXCore100.Linux";tar -zxf "vsldBuildContents.tar.gz"
22:02:52.300: Payload Decompress results: '' (blank=OK)
22:02:52.300: Upload completed with failure.

Linux Distribution:

BalenaOS

Additional Context

Add any other context about the problem here.

[HakanL]

Sometimes if I retry it works, with nothing changed.

[DamianSuess]

@HakanL, seeing that I'm not familiar with BalenaOS, there are a variety of remote-side causes that could be triggering this. None the less, let's work through this and see what we can do.

• Which version of the extension are you using? (assuming the latest published)
• Are you able to test/validate connectivity using SFTP via a 3rd-party tool?
• Are you connected to a physical device or virtualized one?

Your issue appears to be happening right at this point (SshToo.cs - Lines 487-493). This is where I'm calling Renci.SshNet's SFTP to perform the upload.

Since this is happening "sometimes" triggers the question, is the remote OS dropping the SFTP connection?

            Logger.Output("Uploading...");
            await Task.Run(() =>
            {
              tarGzStream.Seek(0, SeekOrigin.Begin);

              sftp.UploadFile(tarGzStream, pathBuildTarGz);
            });

            Logger.Output($"Uploaded '{_tarGzFileName}' [{tarGzSize,13:n0} bytes].");

[HakanL]

Which version of the extension are you using? (assuming the latest published) Yes, latest published

Are you able to test/validate connectivity using SFTP via a 3rd-party tool? I haven't tested this, but I'm SSH:d to the device (using putty)

Are you connected to a physical device or virtualized one? It's a physical Raspberry Pi CM4, but it's running docker so I'm attempting to deploy to a guest instance in docker (and that's where I'm also SSH:d into). But it works intermittently.

How would I see if the remote OS drops the SFTP connection?

[HakanL]

It may have been an issue with my Raspberry Pi, it's been working fine now for a while, so I'll close this issue.

[HakanL]

However it would be good to properly catch and report the error, instead of null-ref :)

[DamianSuess]

None the less, we can get in that checking mechanism. Definitely don't like seeing unexpected errors