UE4打包iOS报错 （rsync-3.0.4-1/src/rsync-3.0.4）

UE4打包iOS报错： UATHelper: Packaging (iOS): rsync error: error in rsync protocol data stream (code 12) at /home/lapo/packaging/rsync-3.0.4-1/src/rsync-3.0.4/io.c(632) [sender=3.0.4]
PackagingResults: Error: error in rsync protocol data stream (code 12) at /home/lapo/packaging/rsync-3.0.4-1/src/rsync-3.0.4/io.c(632) [sender=3.0.4]
UATHelper: Packaging (iOS): ERROR: Error while running Rsync (exit code 12)
PackagingResults: Error: Error while running Rsync (exit code 12)

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本人没有学过编程，业余学习UE4，所以希望大佬解答时尽量详细点，叩谢！

检查一下 /home/lapo/packaging/rsync-3.0.4-1/src/rsync-3.0.4/io.c 第632行及上下。