1.SSL_ERROR_SYSCALL in connection to github.com:443 報錯
[!] Error installing TensorFlowLiteSwift
[!] /usr/bin/git clone https://github.com/tensorflow/tensorflow.git /var/folders/0g/f7wvhrwj1dxg7m1p_rryw3q00000gn/T/d20211207-4474-weuazf --template= --single-branch --depth 1 --branch v2.7.0
Cloning into '/var/folders/0g/f7wvhrwj1dxg7m1p_rryw3q00000gn/T/d20211207-4474-weuazf'...
fatal: unable to access 'https://github.com/tensorflow/tensorflow.git/': LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to github.com:443
解決方案：
如果鍵入github.com:443后進入的Github不是當(dāng)前git config --global -l里當(dāng)前賬號的倉庫，那就退出登錄。如果出現(xiàn)的是Github的登錄界面，那就登錄Github。
a123@123deMacBook-Pro ios % pod install
Analyzing dependencies
Downloading dependencies
Installing TensorFlowLiteC 2.6.0 (was 0.0.1-nightly.20201122)
Installing TensorFlowLiteSwift 2.6.0 (was 0.0.1-nightly.20201122)
Generating Pods project
Integrating client project
Pod installation complete! There are 2 dependencies from the Podfile and 3 total pods installed.
a123@123deMacBook-Pro ios %
2.Failed to connect to github.com port 443: Operation timed out
a123@123deMacBook-Pro ios % pod install
Analyzing dependencies
Downloading dependencies
Installing TensorFlowLiteC 2.6.0 (was 0.0.1-nightly.20201122)
Installing TensorFlowLiteSwift 2.6.0 (was 0.0.1-nightly.20201122)
[!] Error installing TensorFlowLiteSwift
[!] /usr/bin/git clone https://github.com/tensorflow/tensorflow.git /var/folders/0g/f7wvhrwj1dxg7m1p_rryw3q00000gn/T/d20211207-4427-qk3men --template= --single-branch --depth 1 --branch v2.6.0
Cloning into '/var/folders/0g/f7wvhrwj1dxg7m1p_rryw3q00000gn/T/d20211207-4427-qk3men'...
fatal: unable to access 'https://github.com/tensorflow/tensorflow.git/': Failed to connect to github.com port 443: Operation timed out
增加github.global.ssl.fastly.net和github.com的映射
獲取Github相關(guān)網(wǎng)站的ip
訪問https://www.ipaddress.com，拉下來，找到頁面中下方的“IP Address Tools – Quick Links”
分別輸入github.global.ssl.fastly.net和github.com，查詢ip地址
在hosts文件里添加：
# github
199.232.69.194 github.global.ssl.fastly.net
140.82.112.4 github.com
最后命令行輸入：ipconfig /flushdns（更新DNS緩存）
