Block Design AXI BRAM Error

1、现象：

在Block Design 中添加AXI BRAM ，如图：

点击validate design 后，提示如下报错：

ERROR: [axi_bram_cntlr-1] Port-A interface property <CONFIG.READ_WRITE_MODE> is not defined.
ERROR: [Common 17-39] 'send_msg_id' failed due to earlier errors.
ERROR: [BD 41-1273] Error running post_propagate TCL procedure: ERROR: [Common 17-39] 'send_msg_id' failed due to earlier errors.
    ::xilinx.com_ip_axi_bram_ctrl_4.0::post_propagate Line 79

2、解决方法：