Read PDF text doesn't work on one server but works on another ones

[SLM57 (Sophie Le Madec)]

Hi,

We have a server dedicated to development, a server for unattended robot and a server for attended robot.

I’m using activity Read PDF Text to extract text of a pdf download from a website.

When I run the file as debug on development server , pdf is correctly read and its text is extracted.
On unattended server, several processes are using Read PDF Text without any error.
When user starts the robot on attended server, Read PDF Text generates an error:
Could not load file or assembly ‘UiPath.DocumentUnderstanding.Digitizer, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null’ or one of its dependencies. The system cannot find the file specified.

What could be the problem on my attended robot?

[mahmoud.zaky]

@SLM57

UiPath.DocumentUnderstanding.Digitizer

Hi @SLM57,
this error mean that the robot can not find this activity ( UiPath.DocumentUnderstanding.Digitizer) with version ( 2.0.0.0) on the machine you just need to add it manually on from any machine already working fine with you to the attended one in that path (C:\Users${Machine User Name}.nuget\packages) please try and update us if you still face issue

[SLM57 (Sophie Le Madec)]

It works.

Thank you!