I'm getting this error when running my mod on a dedicated server (b1287):

 

http://pastebin.com/aXkYp0Yp

 

The stacktrace that pertains to my code:

...
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/Minecraft
        at com.someguyssoftware.metals.Metals.registerItemRenderers(Metals.java:362)
        at com.someguyssoftware.metals.Metals.init(Metals.java:272)
...

 

is pointing to the line of code where I register the item render for the custom tab:

Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(metalsTabItem, 0, new ModelResourceLocation(modid + ":" + MetalsProperties.metalsTabId, "inventory"));

 

Tab code:

	metalsTabItem = new MetalsTabItem().setUnlocalizedName(MetalsProperties.metalsTabId);
	metalsTab = new CreativeTabs(CreativeTabs.getNextID(), MetalsProperties.metalsTabId) {
        @SideOnly(Side.CLIENT)
        public Item getTabIconItem() {
            return metalsTabItem;
        }
    };

 

Would the @SideOnly be causing issues for the server?  I though this was the proper way for delcaring tab icons.

 

Gotcha! Thanks!