# \#feedthrough

**URL:** https://forum.plexim.com/tag/feedthrough/250.md

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## [Unexpected direct feedthrough in new topology. What is the meaning of this error message?](https://forum.plexim.com/t/unexpected-direct-feedthrough-in-new-topology-what-is-the-meaning-of-this-error-message/321)

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**Author:** [@powersim](https://forum.plexim.com/u/powersim)\
**Replies:** 3\
**Last updated:** [April 10, 2018, 4:16am UTC](https://forum.plexim.com/t/unexpected-direct-feedthrough-in-new-topology-what-is-the-meaning-of-this-error-message/321 "2018-04-10T04:16:58Z")

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I’m trying to debug a power electronics simulation and I get this error message: Fatal error: Unexpected direct feedthrough in new topology I cannot find a reference to this message or any explanation in the Plecs User…