Facing issue in production

Help Studio
1

Hello team,
Error: CreateQueueItem.xaml - Invoke Workflow File: Could not load file or assembly ‘SAP Invoice Import_Expressions_23291580, Version=1.0.36.0, Culture=neutral, PublicKeyToken=null’. The system cannot find the file specified

still yesterday the bot run successfully.
today it is suddenly throwing error like above.

could you pls help me in this to resolve issue

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2

Hi @lakshminarayana_chavala

Pls Take a backup ,then delete the project’s .local and .nuget folders, reopen the project & try.

Happy automation

3

@lakshminarayana_chavala

As per the error, on your bot running tenant/prod tenant, this custom library - SAP Invoice Import_Expressions_23291580 isn’t available.

Make sure you publish the library to prod tenant as well.

4

Same issue on multiple projects, in last few hours

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5

@lakshminarayana_chavala @Marius_Iulian_Rosca

the issue is related to dependency

clear the .nuget folder so that the library is downlaoded again

c:\sers\username\.nuget is the location

cheers

6

@Marius_Iulian_Rosca

What is your specific exception error?

7

Hi @lakshminarayana_chavala

This error occurs when the auto-generated Expressions DLL is missing or corrupted. Re-publishing the process and clearing the UiPath robot cache usually resolves it.

Also check antivirus exclusions or if any policies are updated or changed.

8

Hi @lakshminarayana_chavala

It’s a package/version mismatch.

  • Re-publish the process.
  • Delete the old package from Orchestrator.
  • Restart UiPath Robot service (clears cache).
  • Ensure invoked XAML files weren’t renamed or deleted.
9

Hi team,
i deleted .nuget folder and and put nuget file to orchestrator and installed gain. i run the process. this time
Error:
CreateQueueItem.xaml - Invoke Workflow File: Could not load file or assembly ‘SAP Invoice Import_Expressions_44103206, Version=1.0.33.0, Culture=neutral, PublicKeyToken=null’. Access is denied.

this time it is show access denied

10

That error usually means the compiled expression assembly is missing. A few things to try:

  1. Delete .local and .nuget folders from your project directory (take a backup first), then reopen the project
  2. Check if the “SAP Invoice Import” library is published to your production Orchestrator feed - that’s probably the issue if it worked yesterday
  3. Republish your package to production

Also noticed someone else in the thread had the same issue across multiple projects recently - might be a platform update that caused it.

Is this happening in Studio or when the bot runs from Orchestrator?

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The same situation can be found on other customers’ machines.
Somehow, none of them work anymore.

And is from Studio

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Update, i found my issue.
The problem was created by Bitdefender Endpoint Security.
Bitdefender detected a threat to a series of .dll files, identifying it as a dangerous program of the type Gen:Variant.MSILHeracles245854, which is why those .dll files that cannot be accessed when compiling in Studio were moved to quarantine.
This problem occurred in all production processes on different machines where Bitdefender was installed.

Solution: Change the security policy in the Bitdefender admin account and add the folders where UiPath Studio is installed and the folder where the processes are saved to be excluded from scanning.

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I too found issue.

This is due to anitvirus blocking the .nuget files.
i excluded UiPath and related files from it.
now it is working fine.

Thank you all for your support

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