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Feb 2009 -- Due to time pressures, the ongoing development of 'rope' has been suspended temporarily.

IpTables Rope Scripting Language - EStackEmpty Error

This error means that the Rope script has executed a step that wants to "pop" one or more items off the stack, but there is insufficient data there to satisfy the requirement.

For example..

 20 add print

Will generate this error because add will want to pop two values when used in this way, but the stack only contains one.

The error almost certainly means that there is something wrong with the logic of the script.