topic Re: Error: Operation is not valid due to the state of the object in Product Forum https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101270#M48270 Hi Gracie,<BR /><BR />What is the server OS version?<BR />It is internal error and it may be due to .Net Framework version on your server.<BR />Please check the following link:<BR /><A href="https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-100?redirectedfrom=MSDN" target="test_blank">https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-100?redirectedfrom=MSDN</A><BR /><BR />Hope it helps.<BR /> Fri, 01 Apr 2022 10:50:32 GMT AmolJangam 2022-04-01T10:50:32Z Error: Operation is not valid due to the state of the object https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101268#M48268 Hello,<BR /><BR />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.<BR /><BR />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. <BR /><BR />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?).<BR /><BR /> <DIV class="media" style="overflow: hidden"><span class="lia-inline-image-display-wrapper" image-alt="36668.png"><img src="https://community.blueprism.com/t5/image/serverpage/image-id/36678iF87BA065987FB635/image-size/large?v=v2&amp;px=999" role="button" title="36668.png" alt="36668.png" /></span></DIV> <BR /> <DIV class="media" style="overflow: hidden"><span class="lia-inline-image-display-wrapper" image-alt="36669.png"><img src="https://community.blueprism.com/t5/image/serverpage/image-id/36676iB11F668A6AC3A92D/image-size/large?v=v2&amp;px=999" role="button" title="36669.png" alt="36669.png" /></span></DIV> <BR /> <DIV class="media" style="overflow: hidden"><span class="lia-inline-image-display-wrapper" image-alt="36670.png"><img src="https://community.blueprism.com/t5/image/serverpage/image-id/36681iC0AA62AFCF8FEB33/image-size/large?v=v2&amp;px=999" role="button" title="36670.png" alt="36670.png" /></span></DIV> Thu, 31 Mar 2022 20:32:09 GMT https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101268#M48268 GracieDevine 2022-03-31T20:32:09Z Re: Error: Operation is not valid due to the state of the object https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101269#M48269 Hi Gracie,<BR /><BR />My two cents:<BR /> <UL> <LI>Could it be that you're not yet attached to the object? If not: attach first and verify that the attach was successful.</LI> <LI>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.</LI> </UL> Let us know your progress, or new questions. Fri, 01 Apr 2022 05:51:21 GMT https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101269#M48269 PvD_SE 2022-04-01T05:51:21Z Re: Error: Operation is not valid due to the state of the object https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101270#M48270 Hi Gracie,<BR /><BR />What is the server OS version?<BR />It is internal error and it may be due to .Net Framework version on your server.<BR />Please check the following link:<BR /><A href="https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-100?redirectedfrom=MSDN" target="test_blank">https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-100?redirectedfrom=MSDN</A><BR /><BR />Hope it helps.<BR /> Fri, 01 Apr 2022 10:50:32 GMT https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101270#M48270 AmolJangam 2022-04-01T10:50:32Z Re: Error: Operation is not valid due to the state of the object https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101271#M48271 Hi Paul,<BR /><BR />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).<BR /><BR /><span class="lia-inline-image-display-wrapper" image-alt="36667.png"><img src="https://community.blueprism.com/t5/image/serverpage/image-id/36675i2331E7F6109A0048/image-size/large?v=v2&amp;px=999" role="button" title="36667.png" alt="36667.png" /></span><BR />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? Mon, 04 Apr 2022 15:21:05 GMT https://community.blueprism.com/t5/Product-Forum/Error-Operation-is-not-valid-due-to-the-state-of-the-object/m-p/101271#M48271 GracieDevine 2022-04-04T15:21:05Z