ME is not type-compatible with forma parameter I_CALLING_ALV

Hi everybody............

I trying to create a new class inherited from CL_GUI_ALV_GRID the class new is Z_CL_GUI_ALV_GRID,

I have not change anything at the moment, I have only compilated de new class and this wrong message appears.

How can I resolved this problem ????? I´m astonished with this problem !!!!!!!!!!!!!!!

I have save the new class in the $TMP packet.

My idea is to create a new class using the CL_GUI_ALV_GRID to create other methods....

Thanks in advance and sorry for my terrible english..............