[AMMRL] topshim solvcal gives "unknown exception in drucontr-TRX2 procedure"

From: Wendy Breyer via groups.io <web216=lehigh.edu_at_groups.io>
Date: Fri, 24 Oct 2025 09:00:23 -0700

Hi all,

I'm trying to add HFIP-d2 as a solvent to my 500 MHz Avance NEO with a cryoprobe
(running Topspin 4.5.0 on a Windows 11 PC).  I've successfully added it as
a lock solvent but "topshim solvcal" fails with the error message (screenshot attached):

"In experiment: 1D_acquisition_data 3 1 C:/Bruker/TopSpin4.5.0/prog/curdir/NMR_User/topshimData
(Parameter Set=")

unknown exception in drucontr-TRX2 procedure"

I have a ticket going with Bruker for this issue but I'm wondering if anyone has
seen this error message?  It could be related to file permissions but I've
ensured that the NMR_User account is a member of the PC Administrators group as
well as a member of the NmrUser and NmrSuperUser groups.  I've also tried
explicitly running Topspin as an administrator.

Regular "topshim" completes without errors.  Just seems to have a problem
with "solvcal".

Thanks for any help.

Wendy


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Received on Fri Oct 24 2025 - 09:05:09 MST