Errors during gradlew build

[KoHcoJlb]

Hello all. I'm writing my first mod. When i test it inside IDE all works normal but when i try to build it I've got an error.

D:\Minecraft\Develop\forge-1.7.10-10.13.4.1558-1.7.10-src\build\sources\java\ua\
conso1e\remotecontrol\gui\GuiText.java:23: error: cannot find symbol
        fontRenderer = mc.fontRenderer;
                         ^
  symbol:   variable fontRenderer
  location: variable mc of type Minecraft
D:\Minecraft\Develop\forge-1.7.10-10.13.4.1558-1.7.10-src\build\sources\java\ua\
conso1e\remotecontrol\gui\MyGuiChat.java:12: error: method does not override or
implement a method from a supertype
    @Override
    ^
D:\Minecraft\Develop\forge-1.7.10-10.13.4.1558-1.7.10-src\build\sources\java\ua\
conso1e\remotecontrol\gui\MyGuiChat.java:44: error: cannot find symbol
        super.func_146403_a(msg);
             ^
  symbol: method func_146403_a(String)