# \#dust

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## [DUST-preCICE-MBDyn example, invalid MIT-MAGIC-COOKIE-1 key error](https://precice.discourse.group/t/dust-precice-mbdyn-example-invalid-mit-magic-cookie-1-key-error/2351)

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**Author:** [@Hong](https://precice.discourse.group/u/Hong)\
**Replies:** 1\
**Last updated:** [March 10, 2025, 11:06am UTC](https://precice.discourse.group/t/dust-precice-mbdyn-example-invalid-mit-magic-cookie-1-key-error/2351 "2025-03-10T11:06:47Z")

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Hello, I’m an undergraduate student currently attempting a DUST–MBDyn coupled simulation. I’ve compiled DUST with WITH\_PRECICE = YES, but I’m encountering the following error message: “Invalid MIT-MAGIC-COOKIE-1 key.” I’…