https://forums.autodesk.com/t5/maya-shading-lighting-and/arnold-render/m-p/9128817#M8796 <BLOCKQUOTE><HR />@Anonymous&nbsp;wrote:<BR /> <P><STRONG><EM>The renderer "arnold" used by this scene, is not currently available. </EM></STRONG></P> <HR /></BLOCKQUOTE> <P>The MtoA plugin is not loaded. Open the Plug-in Manager and load mtoa.mll</P> Tue, 05 Nov 2019 17:51:56 GMT Stephen.Blair 2019-11-05T17:51:56Z https://forums.autodesk.com/t5/maya-shading-lighting-and/arnold-render/m-p/9128573#M8795 <P>Hello, I can't add SkyDome light because an error occurs. Even&nbsp;my "Arnold" in the menu bar just disappeared, I can no longer press "Open Arnold Render View".</P><P>This text appears when I open Maya</P><P><STRONG><EM>// Warning: file: /Applications/Autodesk/maya2019/Maya.app/Contents/scripts/others/supportRenderers.mel line 67: The renderer "arnold" used by this scene, is not currently available. The "mayaSoftware" renderer will be used instead. To prevent this message from being displayed in the future, set the environment variable:</EM> <EM>MAYA_NO_WARNING_FOR_MISSING_DEFAULT_RENDERER=1</EM></STRONG></P><P>and this one when I try to add SkyDome light:</P><P><STRONG><EM># Error: TypeError: file /Applications/solidangle/mtoa/2019/scripts/mtoa/utils.py line 510: 'NoneType' object has no attribute '__getitem__'</EM></STRONG></P> Tue, 05 Nov 2019 16:15:26 GMT https://forums.autodesk.com/t5/maya-shading-lighting-and/arnold-render/m-p/9128573#M8795 Anonymous 2019-11-05T16:15:26Z https://forums.autodesk.com/t5/maya-shading-lighting-and/arnold-render/m-p/9128817#M8796 <BLOCKQUOTE><HR />@Anonymous&nbsp;wrote:<BR /> <P><STRONG><EM>The renderer "arnold" used by this scene, is not currently available. </EM></STRONG></P> <HR /></BLOCKQUOTE> <P>The MtoA plugin is not loaded. Open the Plug-in Manager and load mtoa.mll</P> Tue, 05 Nov 2019 17:51:56 GMT https://forums.autodesk.com/t5/maya-shading-lighting-and/arnold-render/m-p/9128817#M8796 Stephen.Blair 2019-11-05T17:51:56Z https://forums.autodesk.com/t5/maya-shading-lighting-and/arnold-render/m-p/9130466#M8797 <P>Thank you, everything is ok now!</P> Wed, 06 Nov 2019 12:51:57 GMT https://forums.autodesk.com/t5/maya-shading-lighting-and/arnold-render/m-p/9130466#M8797 Anonymous 2019-11-06T12:51:57Z