https://forums.autodesk.com/t5/inventor-fusion-read-only/fusion-2013-error/m-p/3783966#M1296 <P>Hi.</P><P>&nbsp;</P><P>I've been working and got the following error trying to save: "<SPAN>Object reference not set to an instance of an object"</SPAN></P><P>&nbsp;</P><P>I've pinpointed the cause of the error. I can save until a fillet 2 lines.&nbsp;</P><P>&nbsp;</P><P><IMG align="center" alt="error1_1.jpg" title="error1_1.jpg" border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/47576iA7B1455A4FF54C47/image-size/medium?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P><IMG align="center" alt="error1_2.jpg" title="error1_2.jpg" border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/47577i87B67BF7CAEF81F1/image-size/medium?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P><IMG align="center" alt="error1_4.jpg" title="error1_4.jpg" border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/47578i30627229A299B5E6/image-size/medium?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P>This is Inventor Fusion 2013 on Windows 7 x64 Pro.</P><P>&nbsp;</P><P>Any clues?</P> Tue, 19 Feb 2013 14:08:50 GMT Anonymous 2013-02-19T14:08:50Z https://forums.autodesk.com/t5/inventor-fusion-read-only/fusion-2013-error/m-p/3783966#M1296 <P>Hi.</P><P>&nbsp;</P><P>I've been working and got the following error trying to save: "<SPAN>Object reference not set to an instance of an object"</SPAN></P><P>&nbsp;</P><P>I've pinpointed the cause of the error. I can save until a fillet 2 lines.&nbsp;</P><P>&nbsp;</P><P><IMG align="center" alt="error1_1.jpg" title="error1_1.jpg" border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/47576iA7B1455A4FF54C47/image-size/medium?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P><IMG align="center" alt="error1_2.jpg" title="error1_2.jpg" border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/47577i87B67BF7CAEF81F1/image-size/medium?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P><IMG align="center" alt="error1_4.jpg" title="error1_4.jpg" border="0" src="https://forums.autodesk.com/t5/image/serverpage/image-id/47578i30627229A299B5E6/image-size/medium?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P>This is Inventor Fusion 2013 on Windows 7 x64 Pro.</P><P>&nbsp;</P><P>Any clues?</P> Tue, 19 Feb 2013 14:08:50 GMT https://forums.autodesk.com/t5/inventor-fusion-read-only/fusion-2013-error/m-p/3783966#M1296 Anonymous 2013-02-19T14:08:50Z https://forums.autodesk.com/t5/inventor-fusion-read-only/fusion-2013-error/m-p/3789563#M1332 <P>Does this happen with any fillet between two sketch lines?</P> Mon, 25 Feb 2013 19:29:57 GMT https://forums.autodesk.com/t5/inventor-fusion-read-only/fusion-2013-error/m-p/3789563#M1332 Phil.E 2013-02-25T19:29:57Z https://forums.autodesk.com/t5/inventor-fusion-read-only/fusion-2013-error/m-p/3789601#M1334 <P>In the end I found out that it was that the radius was to large, once I learned how to use the tool, everything went A-OK</P><P>&nbsp;</P><P>&nbsp;</P> Mon, 25 Feb 2013 19:46:09 GMT https://forums.autodesk.com/t5/inventor-fusion-read-only/fusion-2013-error/m-p/3789601#M1334 Anonymous 2013-02-25T19:46:09Z