Lua麻烦:尝试调用全局“解压"(nil值) [英] Lua trouble: attempt to call global 'unpack' (a nil value)

问题描述

我对Lua相对较新，并且正在尝试将其嵌入到库中.我可以从命令行执行脚本，但是在嵌入脚本时在脚本中调用函数时遇到以下错误

I am relatively new to Lua, and am experimenting with embedding it in a library. I can execute the script just fine from the command line, but I hit the following error when calling a function in my script when embedded

PANIC: unprotected error in call to Lua API ([string "-- #! /usr/local/bin/lua..."]:72: attempt to call global 'unpack' (a nil value))

unpack去哪里了?

推荐答案

您可能是将Lua嵌入为源代码，而不是预先构建的库.在这种情况下，您可能尚未启用向后兼容.

You're probably embedding Lua as source, not as a pre-built library. In this case, you have probably not enabled backward compatibility.

默认情况下，命令行解释器是向后兼容的，因此您会看到差异.

By default, the command line interpreter is built with backward compatibility, hence the difference you see.

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