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CC2652R7: Fail to check out Matter code

Part Number: CC2652R7


Hi team,

I follow up below link to setup Matter environment for CC2652R7. However, it happens error. Please help clarify. Thank you.

  refer to :https://e2e.ti.com/support/wireless-connectivity/zigbee-thread-group/zigbee-and-thread/f/zigbee-thread-forum/1082428/faq-cc2652r7-matter----getting-started-guide

   --> overall: https://github.com/project-chip/connectedhomeip/blob/master/docs/guides/BUILDING.md

   --> Use below command to check out Matter code:

    git clone --recurse-submodules git@github.com:project-chip/connectedhomeip.git

Error:
jerryk@jerryk-virtual-machine:~/Matter$ sudo git clone --recurse-submodules git@github.com:project-chip/connectedhomeip.git
[sudo] password for jerryk:
Cloning into 'connectedhomeip'...
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.