# General Support **URL:** https://get-help.theconstruct.ai/c/general-support/22.md [Latest](https://get-help.theconstruct.ai/latest.md) · [Categories](https://get-help.theconstruct.ai/categories.md) · [Tags](https://get-help.theconstruct.ai/tags.md) --- ## [About the General Support category](https://get-help.theconstruct.ai/t/about-the-general-support-category/34)
**Author:** [@bayodesegun](https://get-help.theconstruct.ai/u/bayodesegun)\ **Replies:** 0\ **Last updated:** [July 17, 2019, 2:10pm UTC](https://get-help.theconstruct.ai/t/about-the-general-support-category/34 "2019-07-17T14:10:08Z")
This category is for questions about anything related to the The Construct apps. Before posting a new question, please use the search button to see if a similar topic already exists. --- ## [What is going on here? almost nothing runs from the terminal](https://get-help.theconstruct.ai/t/what-is-going-on-here-almost-nothing-runs-from-the-terminal/42615)
**Author:** [@UD1](https://get-help.theconstruct.ai/u/UD1)\ **Replies:** 7\ **Last updated:** [September 26, 2026, 5:08am UTC](https://get-help.theconstruct.ai/t/what-is-going-on-here-almost-nothing-runs-from-the-terminal/42615 "2026-09-26T05:08:14Z")
I am just trying to run very basic tools and this is what I am getting. Some “XDG\_RUNTIME\_DIR” error… Please advise. Thank you --- ## [Urgent: Accidentally deleted my src files for a school project](https://get-help.theconstruct.ai/t/urgent-accidentally-deleted-my-src-files-for-a-school-project/42422)
**Author:** [@Mexperseiu](https://get-help.theconstruct.ai/u/Mexperseiu)\ **Replies:** 3\ **Last updated:** [September 7, 2026, 1:20pm UTC](https://get-help.theconstruct.ai/t/urgent-accidentally-deleted-my-src-files-for-a-school-project/42422 "2026-09-07T13:20:43Z")
Hi, I accidentally deleted a private my src folder files in my rosject for an urgent school project (name: Exploration\_drone\_rl). It is urgent due to time. Can I get a previous version restored? @bayodesegun --- ## [Unable to register with master node in Python 3 for Robotics Course](https://get-help.theconstruct.ai/t/unable-to-register-with-master-node-in-python-3-for-robotics-course/42260)
**Author:** [@danielmanu](https://get-help.theconstruct.ai/u/danielmanu)\ **Replies:** 4\ **Last updated:** [August 24, 2026, 11:16am UTC](https://get-help.theconstruct.ai/t/unable-to-register-with-master-node-in-python-3-for-robotics-course/42260 "2026-08-24T11:16:42Z")
Hi. We are going through the Python 3 for Robotics Course, and one of our students got the following error in the terminal when trying to run his program: Unable to register with master node \[http://1\_simulation:11311\]: … --- ## [Portfolio Mobile Support](https://get-help.theconstruct.ai/t/portfolio-mobile-support/42063)
**Author:** [@mattheartin](https://get-help.theconstruct.ai/u/mattheartin)\ **Replies:** 1\ **Last updated:** [August 7, 2026, 8:07am UTC](https://get-help.theconstruct.ai/t/portfolio-mobile-support/42063 "2026-08-07T08:07:59Z")
Hey all, I am having an issue wherein the new portfolio feature is seemingly not supported on mobile. I am able to access my portfolio just fine on my laptop and desktop, but when I send the link to my phone and attemp… --- ## [Rosject de "Linux Basics for Robotics"](https://get-help.theconstruct.ai/t/rosject-de-linux-basics-for-robotics/42021)
**Author:** [@abeelmartinez7](https://get-help.theconstruct.ai/u/abeelmartinez7)\ **Replies:** 1\ **Last updated:** [August 4, 2026, 7:52am UTC](https://get-help.theconstruct.ai/t/rosject-de-linux-basics-for-robotics/42021 "2026-08-04T07:52:20Z")
Buenos días! Estoy iniciando en este maravilloso mundo de la robótica, con el primer curso de Linux básico. Al momento de iniciar con los pasos del rosject, al iniciar la simulación más precisamente, experimento el ícono… --- ## [Camera stream is unavailable](https://get-help.theconstruct.ai/t/camera-stream-is-unavailable/41568)
**Author:** [@barbara.shan.wang](https://get-help.theconstruct.ai/u/barbara.shan.wang)\ **Replies:** 1\ **Last updated:** [June 29, 2026, 8:00am UTC](https://get-help.theconstruct.ai/t/camera-stream-is-unavailable/41568 "2026-06-29T08:00:04Z")
Got camera stream is unavailable right now error for Small City Lab on Jun 27 Saturday Afternoon. Is it because of the session is on a weekend? I tried disconnect and reconnect, didn’t work either. --- ## [Part 3 Python Basics for Robotics Project not working with real robot](https://get-help.theconstruct.ai/t/part-3-python-basics-for-robotics-project-not-working-with-real-robot/41407)
**Author:** [@adityakapoor906](https://get-help.theconstruct.ai/u/adityakapoor906)\ **Replies:** 2\ **Last updated:** [June 16, 2026, 1:13pm UTC](https://get-help.theconstruct.ai/t/part-3-python-basics-for-robotics-project-not-working-with-real-robot/41407 "2026-06-16T13:13:37Z")
Hello, I have been running into a recurring issue when trying to run my robot\_control\_classed.py code with the real robot (fastbot) in part 3 of the Python Basics for Robotics Project, and it seems to be because of an e… --- ## [Cannot find Humanoid (Unitree )course](https://get-help.theconstruct.ai/t/cannot-find-humanoid-unitree-course/41083)
**Author:** [@umut.caliskan](https://get-help.theconstruct.ai/u/umut.caliskan)\ **Replies:** 3\ **Last updated:** [May 20, 2026, 1:07pm UTC](https://get-help.theconstruct.ai/t/cannot-find-humanoid-unitree-course/41083 "2026-05-20T13:07:05Z")
I cannot find the Humanoid (Unitree ) course --- ## [How to use the remote Construct Labs](https://get-help.theconstruct.ai/t/how-to-use-the-remote-construct-labs/41060)
**Author:** [@frank\_008](https://get-help.theconstruct.ai/u/frank_008)\ **Replies:** 1\ **Last updated:** [May 18, 2026, 10:01am UTC](https://get-help.theconstruct.ai/t/how-to-use-the-remote-construct-labs/41060 "2026-05-18T10:01:48Z")
Hi, I would like to do some experiments on the Construct Labs, and I can connect to the robots, but how to run the scripts on it? Do you have any instruction to follow? Many thanks. --- ## [Certificate Basic C++ and Linux for Robotics](https://get-help.theconstruct.ai/t/certificate-basic-c-and-linux-for-robotics/41026)
**Author:** [@Naydiri](https://get-help.theconstruct.ai/u/Naydiri)\ **Replies:** 1\ **Last updated:** [May 15, 2026, 2:58am UTC](https://get-help.theconstruct.ai/t/certificate-basic-c-and-linux-for-robotics/41026 "2026-05-15T02:58:42Z")
Hi there, I finished both the courses C++ for ROS and Linux for ROS but unfortunatly I am not able to book a session to acomplish the cretificates. Could you maybe help me out here? Thank you! --- ## [Simulation Broken? - C++ Basics for Robotics](https://get-help.theconstruct.ai/t/simulation-broken-c-basics-for-robotics/40829)
**Author:** [@lichtphyz](https://get-help.theconstruct.ai/u/lichtphyz)\ **Replies:** 1\ **Last updated:** [April 28, 2026, 11:08am UTC](https://get-help.theconstruct.ai/t/simulation-broken-c-basics-for-robotics/40829 "2026-04-28T11:08:58Z")
I’m trying to complete the project for the C++ Basics for Robotics course, got mid-way through coding up the final project, but now the simulation will not start any more. running: ros2 launch turtlebot3\_gazebo main\_tu… --- ## [Yearly enrollment](https://get-help.theconstruct.ai/t/yearly-enrollment/40675)
**Author:** [@jonathanchretien](https://get-help.theconstruct.ai/u/jonathanchretien)\ **Replies:** 1\ **Last updated:** [April 13, 2026, 6:06pm UTC](https://get-help.theconstruct.ai/t/yearly-enrollment/40675 "2026-04-13T18:06:35Z")
How to enroll for a year and pay upfront? --- ## [Acces to Pro content](https://get-help.theconstruct.ai/t/acces-to-pro-content/40567)
**Author:** [@ahmadsalihu2448](https://get-help.theconstruct.ai/u/ahmadsalihu2448)\ **Replies:** 1\ **Last updated:** [April 7, 2026, 10:31am UTC](https://get-help.theconstruct.ai/t/acces-to-pro-content/40567 "2026-04-07T10:31:00Z")
I wanted to know if there is any way for me to get access to pro content. I’m a student so obviously can’t pay goo euros every month. --- ## [Error in forking projects](https://get-help.theconstruct.ai/t/error-in-forking-projects/40428)
**Author:** [@xiaomingLiu](https://get-help.theconstruct.ai/u/xiaomingLiu)\ **Replies:** 5\ **Last updated:** [March 26, 2026, 11:40am UTC](https://get-help.theconstruct.ai/t/error-in-forking-projects/40428 "2026-03-26T11:40:33Z")
I want to open live class n.127, but this error pop-up appears. I use F12 to check the link, but based on the existing answers in the forum, I still don’t know what the correct link is --- ## [Student export info not showing completed quizes](https://get-help.theconstruct.ai/t/student-export-info-not-showing-completed-quizes/40336)
**Author:** [@time\_wiley](https://get-help.theconstruct.ai/u/time_wiley)\ **Replies:** 4\ **Last updated:** [March 25, 2026, 4:23am UTC](https://get-help.theconstruct.ai/t/student-export-info-not-showing-completed-quizes/40336 "2026-03-25T04:23:37Z")
Hello, I have a small issue, which I didn’t encounter last year. I’ve setup a few required courses for my students with quizzes (in particular ROR basics with Python in 5 days). I know a couple of students have already… --- ## [Restore backup in course](https://get-help.theconstruct.ai/t/restore-backup-in-course/40360)
**Author:** [@fiksdalro](https://get-help.theconstruct.ai/u/fiksdalro)\ **Replies:** 2\ **Last updated:** [March 20, 2026, 4:28pm UTC](https://get-help.theconstruct.ai/t/restore-backup-in-course/40360 "2026-03-20T16:28:34Z")
Im doing the ROS2 Basics in 5 days (Python), and got to 4.7. Somehow the “mars\_rover\_tasks” package folder has gotten deleted. I’m not sure how it happened, maybe i accidentally pressed a button that made it happen, but … --- ## [Subscription Payment Failed — No Access to Masterclass](https://get-help.theconstruct.ai/t/subscription-payment-failed-no-access-to-masterclass/40357)
**Author:** [@markbilginer](https://get-help.theconstruct.ai/u/markbilginer)\ **Replies:** 4\ **Last updated:** [March 20, 2026, 3:58pm UTC](https://get-help.theconstruct.ai/t/subscription-payment-failed-no-access-to-masterclass/40357 "2026-03-20T15:58:58Z")
Summary: I currently do not have access to the Robotics Developer Masterclass, and my subscription payment is not being processed despite updating my payment method. Details: Status shown in dashboard: Subscription P… --- ## [Need to pause subscription](https://get-help.theconstruct.ai/t/need-to-pause-subscription/40176)
**Author:** [@deepthi.rm94](https://get-help.theconstruct.ai/u/deepthi.rm94)\ **Replies:** 1\ **Last updated:** [March 3, 2026, 9:42am UTC](https://get-help.theconstruct.ai/t/need-to-pause-subscription/40176 "2026-03-03T09:42:47Z")
Hi, I have personal commitments and also i dont have much knowledge on the prerequisites . Could you please pause subscription? I would like to start from next month so that i can come prepared but also don’t want to w… --- ## [Subscription shows as canceled, but I’m still being charged monthly](https://get-help.theconstruct.ai/t/subscription-shows-as-canceled-but-i-m-still-being-charged-monthly/40160)
**Author:** [@lmarangoni75](https://get-help.theconstruct.ai/u/lmarangoni75)\ **Replies:** 1\ **Last updated:** [March 2, 2026, 11:48am UTC](https://get-help.theconstruct.ai/t/subscription-shows-as-canceled-but-i-m-still-being-charged-monthly/40160 "2026-03-02T11:48:10Z")
I’m having trouble canceling my subscription on this platform. Even though it appears as canceled, I am still being charged every month. I would like the subscription to be canceled immediately and the recurring charges… --- ## [Gazebo simulation does not show up automatically in the projects - is this an error?](https://get-help.theconstruct.ai/t/gazebo-simulation-does-not-show-up-automatically-in-the-projects-is-this-an-error/40159)
**Author:** [@antszkol6969](https://get-help.theconstruct.ai/u/antszkol6969)\ **Replies:** 1\ **Last updated:** [March 2, 2026, 11:30am UTC](https://get-help.theconstruct.ai/t/gazebo-simulation-does-not-show-up-automatically-in-the-projects-is-this-an-error/40159 "2026-03-02T11:30:03Z")
Hello, Today I was trying to test my code in a Gazebo simulation (Part 2, ROSject for C++ Basics for Robotics\* course) but it suddenly stopped working, showing the error you have been disconnected. After a few attempts,… --- ## [Terminal stuck at 'Connecting to terminal...'](https://get-help.theconstruct.ai/t/terminal-stuck-at-connecting-to-terminal/40126)
**Author:** [@Mexperseiu](https://get-help.theconstruct.ai/u/Mexperseiu)\ **Replies:** 4\ **Last updated:** [February 27, 2026, 10:48am UTC](https://get-help.theconstruct.ai/t/terminal-stuck-at-connecting-to-terminal/40126 "2026-02-27T10:48:48Z")
Hi, when i connect to the real robot, the terminal works as normal, then it start connecting despite having a good connection --- ## [Certificates and summary PDFs](https://get-help.theconstruct.ai/t/certificates-and-summary-pdfs/40101)
**Author:** [@phillip.jr.hogan](https://get-help.theconstruct.ai/u/phillip.jr.hogan)\ **Replies:** 2\ **Last updated:** [February 24, 2026, 3:59pm UTC](https://get-help.theconstruct.ai/t/certificates-and-summary-pdfs/40101 "2026-02-24T15:59:49Z")
Hello, I have completed a course recently but when I go to my Accomplishments sections I do not have a certificate available or access to the summary PDF for my course. The course says 100% complete. Do I need to complet… --- ## [Rosject does not open](https://get-help.theconstruct.ai/t/rosject-does-not-open/40021)
**Author:** [@proftronic](https://get-help.theconstruct.ai/u/proftronic)\ **Replies:** 3\ **Last updated:** [February 24, 2026, 9:54am UTC](https://get-help.theconstruct.ai/t/rosject-does-not-open/40021 "2026-02-24T09:54:49Z")
My rosject does not open (The Construct - Where Your Robotics Career Happens). I’ve tried different browsers and restarted them, but with no luck. --- ## [Inquiry about PX4 SITL](https://get-help.theconstruct.ai/t/inquiry-about-px4-sitl/40062)
**Author:** [@Mexperseiu](https://get-help.theconstruct.ai/u/Mexperseiu)\ **Replies:** 1\ **Last updated:** [February 24, 2026, 7:56am UTC](https://get-help.theconstruct.ai/t/inquiry-about-px4-sitl/40062 "2026-02-24T07:56:13Z")
Hi, I am a beginner and am looking to learn PX4 SITL soon, and I would like to ask if it can be used on theconstruct without having to do it locally. Thanks --- ## [Unable to fork the open classes videos](https://get-help.theconstruct.ai/t/unable-to-fork-the-open-classes-videos/40076)
**Author:** [@sachingattani](https://get-help.theconstruct.ai/u/sachingattani)\ **Replies:** 1\ **Last updated:** [February 23, 2026, 10:25am UTC](https://get-help.theconstruct.ai/t/unable-to-fork-the-open-classes-videos/40076 "2026-02-23T10:25:33Z")
unable to fork the open classes videos --- ## [Error in forking rosject](https://get-help.theconstruct.ai/t/error-in-forking-rosject/39616)
**Author:** [@sachingattani](https://get-help.theconstruct.ai/u/sachingattani)\ **Replies:** 3\ **Last updated:** [January 14, 2026, 11:52am UTC](https://get-help.theconstruct.ai/t/error-in-forking-rosject/39616 "2026-01-14T11:52:50Z")
creating rosject throwing error --- ## [The submit quiz button doesn't work](https://get-help.theconstruct.ai/t/the-submit-quiz-button-doesnt-work/39622)
**Author:** [@ninewninewt](https://get-help.theconstruct.ai/u/ninewninewt)\ **Replies:** 4\ **Last updated:** [January 13, 2026, 11:33am UTC](https://get-help.theconstruct.ai/t/the-submit-quiz-button-doesnt-work/39622 "2026-01-13T11:33:07Z")
Hi, I’m having an issue with the new interface. The ‘Submit Quiz’ button isn’t working. I have tried clicking it multiple times, but nothing happens. Also, when I try to switch back to the old interface, it keeps sending… --- ## [Unable to share completed course projects for LindedIn](https://get-help.theconstruct.ai/t/unable-to-share-completed-course-projects-for-lindedin/39593)
**Author:** [@oniwarrior](https://get-help.theconstruct.ai/u/oniwarrior)\ **Replies:** 1\ **Last updated:** [January 9, 2026, 4:52pm UTC](https://get-help.theconstruct.ai/t/unable-to-share-completed-course-projects-for-lindedin/39593 "2026-01-09T16:52:09Z")
I’ve completed the projects for Robotics Basics with Linux and Robotics Basics with Python and would like to share the link on LinkedIn. I don’t see any share link on the project card themselves and unable to share. I ha… --- ## [ROS2 Jazzy Crash Course 2025 Part 1, Robot doesn't appear in sim](https://get-help.theconstruct.ai/t/ros2-jazzy-crash-course-2025-part-1-robot-doesnt-appear-in-sim/39538)
**Author:** [@imbashamba](https://get-help.theconstruct.ai/u/imbashamba)\ **Replies:** 1\ **Last updated:** [January 5, 2026, 5:06pm UTC](https://get-help.theconstruct.ai/t/ros2-jazzy-crash-course-2025-part-1-robot-doesnt-appear-in-sim/39538 "2026-01-05T17:06:37Z")
I have same issue as in comment on youtube: " @SelwynNoble 3 недели назад My robot will not launch with the launch. Everything is in the Gazebo but the robot. Also, the robot did appear once, and in the move the robot… [Next page](https://get-help.theconstruct.ai/c/general-support/22.md?page=1)