error: 'Ct855' defined but not used [-Werror=unused-const-variable=]

[Kingwulin]

Hi,when build the code it notes fail like below,would you please give me a hand

/home/king5/code/esp-idf/components/fatfs/src/ff.c:541:19: error: 'Ct855' defined but not used [-Werror=unused-const-variable=] static const BYTE Ct855[] = TBL_CT855; ^~~~~ cc1: some warnings being treated as errors [867/1372] Building C object esp-idf/expat/CMakeFiles/__idf_expat.dir/expat/expat/lib/xmltok.c.obj ninja: build stopped: subcommand failed. ninja failed with exit code 1

And I am using the version below idf.py --version ESP-IDF v4.4.1-238-gae0e3e2e2a-dirty

git branch -av master 01d014c42d Merge branch 'contrib/github_pr_9062' into 'master'

• release/v4.4 ae0e3e2e2a Merge branch 'feature/add_spiffs_check_v4.4_2' into 'release/v4.4' remotes/origin/HEAD -> origin/master remotes/origin/audio/stack_on_psram_v3.3 606dd2b629 mbedtls: suport sha1 in certificate remotes/origin/ble_mesh_release/esp-ble-mesh-v0.6.1 88be97dfe8 ble_mesh: Add temporary Provisioner get restored node info api remotes/origin/customer/11kv_v4.0_xiaomi 6b79d1c206 fix ble scan issue remotes/origin/customer/maintain_v4.0_xiaomi_tsf_issue b24a5e78f2 Merge branch 'bugfix/spi_flash_cs_setup_xiaomi_v4.0' into customer/maintain_v4.0_xiaomi_tsf_issue remotes/origin/master 01d014c42d Merge branch 'contrib/github_pr_9062' into 'master' remotes/origin/release/v2.0 bef9896305 Merge branch 'bugfix/xtal_freq_40_2.0' into 'release/v2.0'^M ^M esp32: by default, set 40MHz crystal frequency^M ^M See merge request !1144

[Kingwulin]

Hello,I am come again Why I meet some many error like "cc1: some warnings being treated as errors" that I had never meet in other project Need your help,Thanks

/home/king5/code/demo/KaRadio32_4/components/ucglib/csrc/ucg_dev_oled_128x128_univision.c:189:30: error: 'ucg_seps255_pos_dir0_seq' defined but not used [-Werror=unused-const-variable=] static const ucg_pgm_uint8_t ucg_seps255_pos_dir0_seq[] = ^~~~~~~~ /home/king5/code/demo/KaRadio32_4/components/ucglib/csrc/ucg_dev_oled_128x128_univision.c:44:30: error: 'aaa_ucg_univision_seps225_init_seq' defined but not used [-Werror=unused-const-variable=] static const ucg_pgm_uint8_t aaa_ucg_univision_seps225_init_seq[] = { ^~~~~~~~~~ cc1: some warnings being treated as errors