你好,可以试一下 pod install --repo-update

能否把完整的报错信息粘贴出来看一下?

`[!] Error installing Alamofire
[!] /usr/bin/git clone https://github.com/Alamofire/Alamofire.git /var/folders/rv/7_3qj8kj5sq1nlqz_mmf_zfr0000gn/T/d20200716-66421-1iigvzi --template= --single-branch --depth 1 --branch 5.2.1

Cloning into '/var/folders/rv/7_3qj8kj5sq1nlqz_mmf_zfr0000gn/T/d20200716-66421-1iigvzi'...
error: RPC failed; curl 56 LibreSSL SSL_read: SSL_ERROR_SYSCALL, errno 54
fatal: the remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

感觉像网络问题,可以切换网络或者科学上网再试一下。