nrf connect sdk install “west update” error：

[David]

Hi，

 Recently，i try to install the tool chain of nrf connect  sdk as the instruction as guide。After installed west，then run command “west update”，but got an error：

Can you give advice how to setup ZEPHYR_BASE? tKS!  

[David]

Hi，

The file inside like this：

[Heidi]

No, there should be a file in .west called "config". Do you have that file?