Error when combining AXI UVC and AHB UVC

My testbench need both AXI UVC and AHB UVC. I can successfully run each of them. But when I try to integrate both UVCs into one testbench. I got the following error mesage:

irun: *N,OVMW: The use of the -ovm option will automatically suppress the following warnings
        PMBDVX
        BIGWIX
.
Compiling UVC core code. Please wait ....................
Compiling vr_axi 09.20.003-s ...............
Compiling vr_ahb 09.20.003-s
Linking. This may take a few minutes ...............

irun: *E,SNLDRN: A failure occurred while trying to generate internal simulation files using the dynamic specman library
.....

        1 check was modified.
        1 check was modified.
        1 check was modified.
           *** Error: Items used with per_instance option must be gradable. line 1490
        in @vr_axi_coverage

In my top module file, the "vr_axi_top.sv" and "vr_ahb_top.sv" are included.

`include "vr_axi_top.sv"
`include "vr_ahb_top.sv"

module vr_amba_top_tb();
   import ovm_pkg::*;
 ...

endmodule

Here is the content of the UVC top file "vr_axi_top.sv":

`ifndef OIG_VR_AXI_TOP
`define OIG_VR_AXI_TOP

// pragma oig_irun top_e_files = vr_axi/e/api/ovm/sv_generated_api/vr_axi_ovm.e
// pragma oig_irun oig_params = -uvc_name vr_axi -version 08.20.002-s -eexp vr_axi/misc/vr_axi_cb_ovm.eexp -e_file vr_axi/e/api/ovm/vr_axi_ovm_top.e -base_name vr_axi

`include "ovm_macros.svh"
`ifndef OVM_MB_DEFINES_SVH
   `define SN_SV_MP_OVM_OPEN_SOURCE
`endif

`include "vr_axi_defines.sv"
`include "vr_axi_dut_intf.svh"
`include "vr_axi_extensions.svh"
`include "vr_axi_classes.svh"

`endif

Here is the content of "vr_ahb_top.sv":

`ifndef OIG_VR_AHB_TOP
`define OIG_VR_AHB_TOP

// pragma oig_irun top_e_files = vr_ahb/e/api/ovm/sv_generated_api/vr_ahb_ovm.e
// pragma oig_irun oig_params = -uvc_name vr_ahb -version 08.20.002-s -eexp vr_ahb/misc/vr_ahb_cb_ovm.eexp -e_file vr_ahb/e/api/ovm/vr_ahb_ovm_top.e -base_name vr_ahb

`include "ovm_macros.svh"
`ifndef OVM_MB_DEFINES_SVH
   `define SN_SV_MP_OVM_OPEN_SOURCE
`endif

`include "vr_ahb_defines.sv"
`include "vr_ahb_dut_intf.svh"
`include "vr_ahb_extensions.svh"
`include "vr_ahb_classes.svh"

`endif

I guess there might be some conflicts of the pragmas. Who can help me on this issue?

Thanks very much in advance.