Loading this assembly would produce a different grant set

[Giri1982]

System Information (please complete the following information):
-- Model Builder Version: 16.0.1909.2101
--Visual Studio Version : 2019 16.3.2

Describe the bug
Loading this assembly would produce a different grant set from other instances. (Exception from HRESULT: 0x80131401)

To Reproduce
Steps to reproduce the behavior:
Follow the steps mentioned in the below address.
https://dotnet.microsoft.com/learn/ml-dotnet/get-started-tutorial/install

When we click on train an error is thrown.

Expected behavior
After model training finishes, go to the Evaluate step.

Screenshots

Additional context
Add any other context about the problem here.

[JakeRadMSFT]

Thanks for reporting this issue! I'm unable to reproduce this but I'll try to track down the cause.

Were you using the dataset from the tutorial - 'wikipedia-detox-250-line-data.tsv'?
Is the machine 64bit or 32bit?
Do you have another machine to try it out on?

Can you look under %temp%\servicehub\logs and see if there are any logs with ModelBuilder in the file name?

[JakeRadMSFT]

@AArnott have you seen anything like this? It seems to be happening really early in our attempt to talk to our ServiceHub service.

[JakeRadMSFT]

Searching the web seems to come up with workarounds but they seem to be SharePoint or Web Related.

@Giri1982 This seems environmental. Can you try installing any pending Windows updates, VS updates, .NET Framework updates, and rebooting?

Is there anything else different about this machine? Multi-User/Remote Desktop?

[AArnott]

No, I've never seen that error.

[JakeRadMSFT]

@Giri1982 closing this issue but please re-open if you hit it consistently. This should be a very very rare bug to hit.

[pdrozdowski]

Hi,
I got the same problem.
Only error in log C:\Users\padrozdo\AppData\Local\Temp\servicehub\logs\0340F6B9\ServiceHub.Host.CLR.x86-17220\TestWindow Service Client-hubControllerLookup-17220-ngim0r30-1.log
is:
10/31/2019 09:23:52 Central European Standard Time : Warning : Controller terminated with exit code '21'. Signaling cancellation.

I'm on Win10 Pro x64.
vs_info.txt

[graposo1]

Hi,

I started having this issue today after I installed the .NET Core cross-platform development workload on my VS.

EDIT:
I went to check the modifications and this was the workload: Visual Studio Tools for Office (VSTO). I tried removing it, but it didn't work.

[LittleLittleCloud]

We are working on a fix(#834 ) for this issue

@Giri1982 @graposo1 @pdrozdowski Can you help us test that fix when it's ready? It's a rare bug from CLR, and is quite difficult to reproduce.

Please reply to #834 if you want to try that test fix!