fatal: error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:727)

i have followed the IMXLXYOCTOUG i.MX Yocto Project User's Guide Rev. LF5.10.9_1.0.0 — 12 April 2021 . i am working on : Rugged Board , PhyCore - i.MX6 UL (MCIMX6G2CVM05AB) . Host machine is ubuntu18.4 solutions on internet says the error mentioned below is due to proxy but i have not set any proxy and where to check it if i had

i executed the commands as mentioned below and the error it shows:: -------------------------------------------------------------------------------------------------------------------------------------- r@dell:~/bin/imx-yocto-bsp$ repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-gatesgarth -m imx-5.10.9-1.0.0.xml fatal: Cannot get https://gerrit.googlesource.com/git-repo/clone.bundle fatal: error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:727) r@dell:~/bin/imx-yocto-bsp$ --------------------------------------------------------------------------------------------------------------------------------------