# Server crash on variable changes in experiment
**URL:** https://mworks.discourse.group/t/server-crash-on-variable-changes-in-experiment/685
**Category:** Support
**Created:** [May 4, 2011, 8:11pm UTC](https://mworks.discourse.group/t/server-crash-on-variable-changes-in-experiment/685 "2011-05-04T20:11:22Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [May 4, 2011, 8:11pm UTC](https://mworks.discourse.group/t/server-crash-on-variable-changes-in-experiment/685/1 "2011-05-04T20:11:22Z")
If you remove a variable from an experiment XML file, so it is no longer defined there, and it exists in the saved variable set, the Server will crash. (Saved variable set is ~/Documents/MWorks/Experiment Storage/_path\_hash_/Saved Variables/xxxname.xml).
I am using an older nightly: (0.4.5-dev 1f3634b), and haven’t yet checked the new version.
This may be fixed already.
M
---
### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [May 4, 2011, 8:44pm UTC](https://mworks.discourse.group/t/server-crash-on-variable-changes-in-experiment/685/2 "2011-05-04T20:44:33Z")
Hi Mark,
Thanks for the bug report. I’ve confirmed that this problem exists in the current nightly. I’ll open a ticket and get it fixed.
Chris
---
### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [May 4, 2011, 8:49pm UTC](https://mworks.discourse.group/t/server-crash-on-variable-changes-in-experiment/685/3 "2011-05-04T20:49:28Z")
Great! Thanks.
---
### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [July 19, 2022, 11:48pm UTC](https://mworks.discourse.group/t/server-crash-on-variable-changes-in-experiment/685/4 "2022-07-19T23:48:52Z")