# Advent of SysML v2 **URL:** https://forum.sensmetry.com/c/sysml/advent-of-sysml-v2/32.md [Latest](https://forum.sensmetry.com/latest.md) · [Categories](https://forum.sensmetry.com/categories.md) · [Tags](https://forum.sensmetry.com/tags.md) --- ## [Lesson 9 - Sysand in Terminal](https://forum.sensmetry.com/t/lesson-9-sysand-in-terminal/361)
**Author:** [@brlarson](https://forum.sensmetry.com/u/brlarson)\ **Replies:** 3\ **Last updated:** [September 17, 2026, 10:22pm UTC](https://forum.sensmetry.com/t/lesson-9-sysand-in-terminal/361 "2026-09-17T22:22:13Z")
Trying the challenge for Lesson 9, $ sysand –version returns “sysand0.0.7” However $ sysand new my\_project returns “error: unrecognized subcommand ‘new’“. Similarly $ sysand add urn:kpar:pleml returns “error: una… --- ## [Lesson 5 - Enforcing Multiplicity Limits - 3 Runners Caused No Errors](https://forum.sensmetry.com/t/lesson-5-enforcing-multiplicity-limits-3-runners-caused-no-errors/324)
**Author:** [@BenSweet](https://forum.sensmetry.com/u/BenSweet)\ **Replies:** 4\ **Last updated:** [July 18, 2026, 10:20am UTC](https://forum.sensmetry.com/t/lesson-5-enforcing-multiplicity-limits-3-runners-caused-no-errors/324 "2026-07-18T10:20:50Z")
Greetings! I believe that I defined the multiplicity for “runner” correctly based on the way “reindeer” is defined: abstract ref part reindeer : Reindeer \[9\]; // Definition of Runner and Side not shown abstract part … --- ## [Lesson 19 - errors when trying to execute the simulation for other state machines](https://forum.sensmetry.com/t/lesson-19-errors-when-trying-to-execute-the-simulation-for-other-state-machines/435)
**Author:** [@Antonio\_Cicchetti](https://forum.sensmetry.com/u/Antonio_Cicchetti)\ **Replies:** 7\ **Last updated:** [April 7, 2026, 12:49pm UTC](https://forum.sensmetry.com/t/lesson-19-errors-when-trying-to-execute-the-simulation-for-other-state-machines/435 "2026-04-07T12:49:39Z")
Thanks a lot for the very interesting material! As proposed by the challenge of Lesson 19 I am trying to run the state machine simulation for other state machines. First I have tried the one shown for Lesson 19 and every… --- ## [Create a new project with Sysand integration](https://forum.sensmetry.com/t/create-a-new-project-with-sysand-integration/395)
**Author:** [@Berenice\_Rodriguez\_P](https://forum.sensmetry.com/u/Berenice_Rodriguez_P)\ **Replies:** 2\ **Last updated:** [February 18, 2026, 8:11am UTC](https://forum.sensmetry.com/t/create-a-new-project-with-sysand-integration/395 "2026-02-18T08:11:04Z")
It is confusing to understand how to decompose Sysand and properly integrate it with SysML v2. I believe it would be highly beneficial to have a detailed guide explaining step by step how to carry out this integration. I… --- ## [Lesson 9 – Package Manager for SysML v2](https://forum.sensmetry.com/t/lesson-9-package-manager-for-sysml-v2/398)
**Author:** [@Horacio\_Ruiz\_Sanchez](https://forum.sensmetry.com/u/Horacio_Ruiz_Sanchez)\ **Replies:** 1\ **Last updated:** [February 17, 2026, 10:47am UTC](https://forum.sensmetry.com/t/lesson-9-package-manager-for-sysml-v2/398 "2026-02-17T10:47:42Z")
I am working with advanced SysML v2 libraries like \*\*ArchitectureDesign\*\* and \*\*LCA\*\* (Life Cycle Assessment) from the Sysand ecosystem and I have encountered this frustrating error: error (reference-error): No Namespa… --- ## [Lesson 19, event-gated transitions with optional guards versus condition-monitored transitions](https://forum.sensmetry.com/t/lesson-19-event-gated-transitions-with-optional-guards-versus-condition-monitored-transitions/357)
**Author:** [@Maurice](https://forum.sensmetry.com/u/Maurice)\ **Replies:** 1\ **Last updated:** [December 31, 2025, 5:20pm UTC](https://forum.sensmetry.com/t/lesson-19-event-gated-transitions-with-optional-guards-versus-condition-monitored-transitions/357 "2025-12-31T17:20:21Z")
Hi, Still trying to get my lesson 18 model to run in the lesson 19 simulator. It seems I have hit some sort of fundamental issue. The state transitions in lesson 18, my own as well as the provided solution have been w… --- ## [Lesson 19, accept when versus if](https://forum.sensmetry.com/t/lesson-19-accept-when-versus-if/355)
**Author:** [@Maurice](https://forum.sensmetry.com/u/Maurice)\ **Replies:** 1\ **Last updated:** [December 31, 2025, 5:11pm UTC](https://forum.sensmetry.com/t/lesson-19-accept-when-versus-if/355 "2025-12-31T17:11:01Z")
Hi, When trying to get my lesson 18 model to work with the simulator I ran into a problem. It comes to down how I implemented the state transition in lesson 18. I simply used if instead of accept when. To give example … --- ## [Interaction Sequences](https://forum.sensmetry.com/t/interaction-sequences/354)
**Author:** [@TomBaker](https://forum.sensmetry.com/u/TomBaker)\ **Replies:** 1\ **Last updated:** [December 31, 2025, 5:00pm UTC](https://forum.sensmetry.com/t/interaction-sequences/354 "2025-12-31T17:00:52Z")
Thanks for the great course, I‘ve been enjoying following along and learning SysML v2! Will one of the last challenges include a sequence interaction? I got a very good overview so far, the two things I don‘t yet have a… --- ## [Lesson 19 - How did you generate graphical depiction of state machine?](https://forum.sensmetry.com/t/lesson-19-how-did-you-generate-graphical-depiction-of-state-machine/356)
**Author:** [@BenSweet](https://forum.sensmetry.com/u/BenSweet)\ **Replies:** 1\ **Last updated:** [December 26, 2025, 3:24pm UTC](https://forum.sensmetry.com/t/lesson-19-how-did-you-generate-graphical-depiction-of-state-machine/356 "2025-12-26T15:24:35Z")
Thanks for the great training! Very practical information and techniques demonstrated. Did you show how you generate the state machine graphical depiction with highlighted transitions? I am also interested in how you ge… --- ## [Lesson 2 - SysML v2 questions, and a visualization question](https://forum.sensmetry.com/t/lesson-2-sysml-v2-questions-and-a-visualization-question/353)
**Author:** [@Kennie\_Garlington](https://forum.sensmetry.com/u/Kennie_Garlington)\ **Replies:** 1\ **Last updated:** [December 22, 2025, 11:35am UTC](https://forum.sensmetry.com/t/lesson-2-sysml-v2-questions-and-a-visualization-question/353 "2025-12-22T11:35:44Z")
I didn’t understand some of the syntax introduced used in L02\_SantaSleigh.sysml. For example: SysML questions I think I understand why “ref” is used for santa, the abstract reindeer, and the specific reindeer parts, s… --- ## [Lesson 1 comments](https://forum.sensmetry.com/t/lesson-1-comments/350)
**Author:** [@Kennie\_Garlington](https://forum.sensmetry.com/u/Kennie_Garlington)\ **Replies:** 1\ **Last updated:** [December 22, 2025, 9:42am UTC](https://forum.sensmetry.com/t/lesson-1-comments/350 "2025-12-22T09:42:18Z")
These may be addressed in later lessons, but after completing Lesson 1 I had two comments: The transformation at 5:00 in the video was very confusing. I assume you’re pasting in the body of a different version of the L… --- ## [Lesson 10 - extending to package documentation](https://forum.sensmetry.com/t/lesson-10-extending-to-package-documentation/346)
**Author:** [@sean](https://forum.sensmetry.com/u/sean)\ **Replies:** 2\ **Last updated:** [December 19, 2025, 12:41pm UTC](https://forum.sensmetry.com/t/lesson-10-extending-to-package-documentation/346 "2025-12-19T12:41:45Z")
Hi, Lesson 10 demonstrates how to extract documentation of Part Definitions and Usages. I wish to experiment extending that to other element types, for example, documentation of the package. In the lesson 10 directory,… --- ## [Lesson 16, (model-error): Function 'min' is not a model-level evaluable function](https://forum.sensmetry.com/t/lesson-16-model-error-function-min-is-not-a-model-level-evaluable-function/342)
**Author:** [@Maurice](https://forum.sensmetry.com/u/Maurice)\ **Replies:** 1\ **Last updated:** [December 19, 2025, 6:51am UTC](https://forum.sensmetry.com/t/lesson-16-model-error-function-min-is-not-a-model-level-evaluable-function/342 "2025-12-19T06:51:56Z")
Hi, As part of the challenge of Lesson 16, I added an energy attribute to each reindeer, with the goal to calculate the maximum flight time as the minimum of flight time per reindeer defined by their energy / power. Fi… --- ## [Import syside issue](https://forum.sensmetry.com/t/import-syside-issue/336)
**Author:** [@j.bruel](https://forum.sensmetry.com/u/j.bruel)\ **Replies:** 4\ **Last updated:** [December 16, 2025, 1:44pm UTC](https://forum.sensmetry.com/t/import-syside-issue/336 "2025-12-16T13:44:06Z")
Must be a stupid config issue, but when I am trying to run a script, I get the following error: import syside ModuleNotFoundError: No module named ‘syside’ --- ## [CST explorer, highlighting only one way?](https://forum.sensmetry.com/t/cst-explorer-highlighting-only-one-way/338)
**Author:** [@Maurice](https://forum.sensmetry.com/u/Maurice)\ **Replies:** 2\ **Last updated:** [December 16, 2025, 11:59am UTC](https://forum.sensmetry.com/t/cst-explorer-highlighting-only-one-way/338 "2025-12-16T11:59:29Z")
Hi, I used the CST explorer for Lesson 15. What would make de explorer even more useful, is making the highlighting bi-directional. To elaborate, clicking on “FeatureTyping” on the right, see top half of image, highli… --- ## [Registration never seems to work for the Advent event](https://forum.sensmetry.com/t/registration-never-seems-to-work-for-the-advent-event/328)
**Author:** [@Kevin](https://forum.sensmetry.com/u/Kevin)\ **Replies:** 6\ **Last updated:** [December 15, 2025, 6:32pm UTC](https://forum.sensmetry.com/t/registration-never-seems-to-work-for-the-advent-event/328 "2025-12-15T18:32:04Z")
I’ve tried to register for this several times, but the links never seem to work. They are either already marked as expired, or they don’t lead anywhere. --- ## [Lesson 12 - unnamed connection in \_Solution file line 46](https://forum.sensmetry.com/t/lesson-12-unnamed-connection-in-solution-file-line-46/335)
**Author:** [@Kai](https://forum.sensmetry.com/u/Kai)\ **Replies:** 1\ **Last updated:** [December 14, 2025, 1:05pm UTC](https://forum.sensmetry.com/t/lesson-12-unnamed-connection-in-solution-file-line-46/335 "2025-12-14T13:05:29Z")
Hi, In /home/jovyan/advent-of-sysml-v2/lesson12/models/L12\_ReindeerDrawnSleighAssembly\_Solution.sysml on line 46 there seems to be a connection without name: connection : Drives connect \[1\] santa to \[1\] sleigh; And,… --- ## [Lesson 3 Challenge](https://forum.sensmetry.com/t/lesson-3-challenge/332)
**Author:** [@Maurice](https://forum.sensmetry.com/u/Maurice)\ **Replies:** 1\ **Last updated:** [December 12, 2025, 5:36pm UTC](https://forum.sensmetry.com/t/lesson-3-challenge/332 "2025-12-12T17:36:16Z")
Hi, The solution for the Advent SysML v2, Lesson 3 challenge show this part def for an Elf. part def Elf { attribute skillType : SkillType default := SkillType::TBD; attribute skillLevel : Rea… --- ## [Lesson 4 challenge](https://forum.sensmetry.com/t/lesson-4-challenge/333)
**Author:** [@Maurice](https://forum.sensmetry.com/u/Maurice)\ **Replies:** 1\ **Last updated:** [December 12, 2025, 5:30pm UTC](https://forum.sensmetry.com/t/lesson-4-challenge/333 "2025-12-12T17:30:53Z")
Hi, I have a question about the Advent of SysML v2, Lesson 4 challenge. The requirement on the item is: ”- The gift bag should contain at least a toy train, a teddy bear, and a candy cane. “ However with: item giftb… --- ## [Lesson 4 - Incorrect Use of "Tuple" in Video](https://forum.sensmetry.com/t/lesson-4-incorrect-use-of-tuple-in-video/329)
**Author:** [@jdoerr3](https://forum.sensmetry.com/u/jdoerr3)\ **Replies:** 6\ **Last updated:** [December 11, 2025, 1:13pm UTC](https://forum.sensmetry.com/t/lesson-4-incorrect-use-of-tuple-in-video/329 "2025-12-11T13:13:28Z")
I believe the use of the word “tuple” was incorrect in the video. In relational theory, a tuple is an individual within the set of possible mappings between members of classes defined by the relation. Similar to the idea… --- ## [Claude code integration outage](https://forum.sensmetry.com/t/claude-code-integration-outage/331)
**Author:** [@Erik\_Sundell](https://forum.sensmetry.com/u/Erik_Sundell)\ **Replies:** 0\ **Last updated:** [December 10, 2025, 10:27am UTC](https://forum.sensmetry.com/t/claude-code-integration-outage/331 "2025-12-10T10:27:18Z")
Hi all! I made a mistake, and as a result the Claude Code integration broke an hour ago (Dec 10, around 9 AM UTC). If you visit https://advent.syside.app/hub/home and stop→start your server, it should start working agai… --- ## [Lesson 6 - Version Control with Git](https://forum.sensmetry.com/t/lesson-6-version-control-with-git/325)
**Author:** [@BenSweet](https://forum.sensmetry.com/u/BenSweet)\ **Replies:** 0\ **Last updated:** [December 7, 2025, 3:50am UTC](https://forum.sensmetry.com/t/lesson-6-version-control-with-git/325 "2025-12-07T03:50:45Z")
Thanks for including the hands-on intro to Git in VS Code! I have used Git integration in other tools, as well as TortoiseGit, GitKraken, and command line. It is good to see that Git integration in VS Code is easy to s… --- ## [Day 2 - printing of attributes for "Reindeer" - how to handle enumerated values?](https://forum.sensmetry.com/t/day-2-printing-of-attributes-for-reindeer-how-to-handle-enumerated-values/322)
**Author:** [@nlmave](https://forum.sensmetry.com/u/nlmave)\ **Replies:** 1\ **Last updated:** [December 4, 2025, 3:41pm UTC](https://forum.sensmetry.com/t/day-2-printing-of-attributes-for-reindeer-how-to-handle-enumerated-values/322 "2025-12-04T15:41:51Z")
Hi! I tried to extract all attributes from the example, and it works for “SantaSleigh”, when I call find\_element\_by\_name, it then prints (see code snippet below) rudolph.energyLevel = 200.0 But when I try to do the sa… --- ## [Connection problems](https://forum.sensmetry.com/t/connection-problems/321)
**Author:** [@ste](https://forum.sensmetry.com/u/ste)\ **Replies:** 1\ **Last updated:** [December 3, 2025, 11:30am UTC](https://forum.sensmetry.com/t/connection-problems/321 "2025-12-03T11:30:01Z")
Hi, I joined the advent of sysml v2 and already took the first challenge. Today, I am not able to connect to the link anymore? Already checked the firewall, but still no clue. Is the server up and running? Best