IPQ806x-D7800 complie ERRO

I make D7800 firmware use sources code from https://github.com/lede-project.
but there are some erro display.below information

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  • check_data_file_clashes: Package libustream-openssl wants to install file /home/morsun/lede/source/build_dir/target-arm_cortex-a15+neon-vfpv4_musl-1.1.16_eabi/root-ipq806x/lib/libustream-ssl.so
    But that file is already provided by package * libustream-mbedtls
  • opkg_install_cmd: Cannot install package libustream-openssl.
  • check_data_file_clashes: Package libustream-openssl wants to install file /home/morsun/lede/source/build_dir/target-arm_cortex-a15+neon-vfpv4_musl-1.1.16_eabi/root-ipq806x/lib/libustream-ssl.so
    But that file is already provided by package * libustream-mbedtls
  • opkg_install_cmd: Cannot install package luci-ssl-openssl.
    package/Makefile:61: recipe for target 'package/install' failed
    make[2]: *** [package/install] Error 255
    make[2]: Leaving directory '/home/morsun/lede/source'
    package/Makefile:103: recipe for target '/home/morsun/lede/source/staging_dir/target-arm_cortex-a15+neon-vfpv4_musl-1.1.16_eabi/stamp/.package_install' failed
    make[1]: *** [/home/morsun/lede/source/staging_dir/target-arm_cortex-a15+neon-vfpv4_musl-1.1.16_eabi/stamp/.package_install] Error 2
    make[1]: Leaving directory '/home/morsun/lede/source'
    /home/morsun/lede/source/include/toplevel.mk:197: recipe for target 'world' failed
    make: *** [world] Error 2
    ###################

You can't have both openssl- and mbedtls- provided libustream, you need to pick one.