https://community.appian.com/discussions/f/user-interface/22414/a-fileuploadfieldEven though there is no code changes , I am getting an error when shifting to designer mode from Expression mode. Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error at function a!fileUploadFielden-USTelligent Community 12https://community.appian.com/thread/87731?ContentTypeID=1Sun, 07 Nov 2021 10:26:19 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:1ba5a0e4-b86a-4dbc-93c6-c5e50d27fa9cStefan Helzle<p><pre class="ui-code" data-mode="text">fileNames: fv!files.name: local!registratioNo, </pre></p> <p>There is two things.</p> <p>First, the last part &quot;local!registratioNo,&quot; is wrong syntax. Remove it and&nbsp;this should work.</p> <p>Second, if you do not want to modify the filenames, you can just ignore that parameter.</p><div style="clear:both;"></div>https://community.appian.com/thread/87730?ContentTypeID=1Sun, 07 Nov 2021 06:29:56 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:c69cd98f-be33-4bdb-b9fc-449a3e28b9b3sivasuryap0002<p>Hello ,</p> <p><br />I have tried fv!file.name as well but it didn&#39;t worked (as the max selection is 1 I have not used any looping).<br />Could you suggest me the correct way please.</p> <p>Thanks in advance,<br />Surya.</p><div style="clear:both;"></div>https://community.appian.com/thread/87728?ContentTypeID=1Sat, 06 Nov 2021 20:26:44 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:e7de58d7-ef3a-4eb3-87ff-8e26f977f131Stefan Helzle<p>Line 5 seems to be wrong. Please check that.</p><div style="clear:both;"></div>