Understanding Download Errors in VEXcode IQ

There are four potential error messages a user might see when downloading a project to a VEX IQ (1st generation) or (2nd generation) Brain.

Please skip to the section of this article with the error message that you are seeing.


Your program failed to download

Flowchart illustrating troubleshooting steps for VEX IQ Robotics platform, highlighting common issues and solutions for beginners in robotics education.

You are seeing the error message above because the Brain lost its connection during the download process.

Check these possible reasons before trying again: 


Unable to access Cloud Compiler servers

Flowchart illustrating troubleshooting steps for VEX IQ Robotics platform, highlighting common issues and solutions for beginners in robotics education.

Flowchart illustrating troubleshooting steps for VEX IQ robotics issues, including common problems and solutions, aimed at guiding users through the diagnostic process in the VEX IQ knowledge base.

This error will be shown when VEXcode IQ cannot connect to the remote Cloud Compiler server while working on ChromeOS, iOS, and Android.

You can visit http://status.vexcode.cloud to see if the Cloud Compilers are currently running as well.


Compiler process has timed out

Screenshot of troubleshooting tips for the VEX IQ Robotics platform, featuring common issues and solutions to assist educators and students in resolving problems during robot building and programming.

This error is shown when there is no response from the Cloud Compiler server. It could be that the server is having a load issue. Please wait a minute and try again.


Error compiling your program

Flowchart illustrating troubleshooting steps for VEX IQ Robotics platform, detailing common issues and solutions to assist users in resolving problems effectively.

You are seeing the error message above because an unexpected error occurred. The “Show Details” area will give technical debugging information that can be used to troubleshoot your issue.

Follow these steps: 

  1. Click "Show Details" in the error message window. 
  2. Highlight and copy all of the details shown

    Flowchart illustrating troubleshooting steps for VEX IQ robotics platform, highlighting common issues and solutions for educators and students in the context of building and programming robots.

  3. Click the Feedback button at the top right side of the screen in VEXcode IQ and paste the details into the ticket where it says, “Your message…” 
  4. Make sure that you click to include your diagnostic and usage data. Type in your email address in case the development team may need to reach out for more information, then click "Send." 

Diagram illustrating troubleshooting steps for VEX IQ Robotics platform, featuring key components and solutions to common issues encountered by users in educational and beginner robotics contexts.

For more information, help, and tips, check out the many resources at VEX Professional Development Plus

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