topic Re: what does this error mean-(Left parenthesis not expected) in Revit Structure Forum https://forums.autodesk.com/t5/revit-structure-forum/what-does-this-error-mean-left-parenthesis-not-expected/m-p/8267977#M29662 <P>hello, it look like syntax error, something wrong with your formula/parameters. thanks</P> Fri, 14 Sep 2018 09:19:29 GMT ennujozlagam 2018-09-14T09:19:29Z what does this error mean-(Left parenthesis not expected) https://forums.autodesk.com/t5/revit-structure-forum/what-does-this-error-mean-left-parenthesis-not-expected/m-p/8267805#M29661 <P>I had this error while creating family paramters</P><P>&nbsp;</P><P>is anyone know what does this mean</P> Fri, 14 Sep 2018 07:39:39 GMT https://forums.autodesk.com/t5/revit-structure-forum/what-does-this-error-mean-left-parenthesis-not-expected/m-p/8267805#M29661 Anonymous 2018-09-14T07:39:39Z Re: what does this error mean-(Left parenthesis not expected) https://forums.autodesk.com/t5/revit-structure-forum/what-does-this-error-mean-left-parenthesis-not-expected/m-p/8267977#M29662 <P>hello, it look like syntax error, something wrong with your formula/parameters. thanks</P> Fri, 14 Sep 2018 09:19:29 GMT https://forums.autodesk.com/t5/revit-structure-forum/what-does-this-error-mean-left-parenthesis-not-expected/m-p/8267977#M29662 ennujozlagam 2018-09-14T09:19:29Z Re: what does this error mean-(Left parenthesis not expected) https://forums.autodesk.com/t5/revit-structure-forum/what-does-this-error-mean-left-parenthesis-not-expected/m-p/8965013#M29663 <P>I encountered this error a second ago and had to put the parameter in square brackets [] to fix it.&nbsp;</P> Wed, 14 Aug 2019 07:29:08 GMT https://forums.autodesk.com/t5/revit-structure-forum/what-does-this-error-mean-left-parenthesis-not-expected/m-p/8965013#M29663 Anonymous 2019-08-14T07:29:08Z