Error: Operation is not valid due to the state of the object

[GracieDevine]

Hello,

I am working with a bot that my predecessor built and am switching the process from the test to dev environment. In the code there is a Navigate Stage to press the Edit Line icon on a webpage and in both environments Application Modeller can highlight the icon. However, when I run the process in dev I get the error: operation is not valid due to the state of the object.

I've attached screenshots of the Navigate Stage, the edit line icon (that Application Modeller can highlight), and the error message in the session log.

Could someone please explain what this error means? I tried to find Blue Prism documentation about it, but couldn't. I interpret this error to mean that I can't use Press as an action in my Navigate Stage, but don't know how else I'd go about it (unless I re-spy the element?).

[PvD_SE · Accepted solution]

Hi Gracie,

My two cents:

• Could it be that you're not yet attached to the object? If not: attach first and verify that the attach was successful.
• If you are attached and connected: In the Application Modeller, can you highlight the indicated element (button in this case) and all other elements? If not: re-spy.

Let us know your progress, or new questions.

[AmolJangam]

Hi Gracie,

What is the server OS version?
It is internal error and it may be due to .Net Framework version on your server.
Please check the following link:
https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-100?redirectedfrom=MSDN

Hope it helps.

[GracieDevine]

Hi Paul,

I re-spied the element and it worked! But actually, I got the same error at another stage in the process and used the attach method you suggested here (and it worked).


Thanks for your help! And while I have you, do you know if it's best practice to attach before or after the wait stage?