Developer First App : Errors with npx dt-app

[djmnyc]

Good morning.

I am attempting to work through the Dynatrace First App in 5 Minutes tutorial: First app in 5 minutes | Dynatrace Developer

I am new to the world of node.js and npx, which is most likely why I am having so much trouble.  However, a first app tutorial should be extremely straight forward and easy to implement.  

Initially, when attempting to create the new project with "npx dt-app@latest create" I was getting errors stating npx could not retrieve the necessary templates from GitHub.  I ran through the connectivity troubleshooting documentation, and found the workaround where I could manually download the templates and provide the path to these within the npx dt-app command line.  This helped, as the creation process progressed somewhat with this.  However, I am not receiving the following errors:

Error: Installing the dependencies failed.
Please try to run npm install
npm error code ETARGET
npm error notarget No matching version found for @dynatrace-sdk/navigation@^2.1.0.
npm error notarget In most cases you or one of your dependencies are requesting
npm error notarget a package version that doesn't exist.  

It seems there is a problem with the dependencies that are being pulled by npx.  Shouldn't the dt-app have the correct config files to resolve this?  How do I go about correcting this?

I have attached the error log file for review.

Any help would be greatly appreciated.

Thank you!

[haris]

Hi djmnyc,
I see in the logs that you're using node v24, can you please try using v22.16 and let me know the outcome? Also terminal/cmd log would be helpful to see in case it fails again.

Best, Haris

[djmnyc]

Hi Harris.  

I removed v24 and installed v22.16 as you suggested.  Unfortunately, I am still getting the same error message:

I have attached both the cmd error and the error log file.

[haris]

I see, it seems like there's an issue with the template you're referencing. Can you try once again without using template? 

Otherwise, here are some of the possible reasons:

• Access to the internet on local machines is not permitted at all
• The firewall is configured only to allow access to specific domains
• Only specific processes/tools can access external webpage
•  

How to debug:

• Can your machine access any external webpage via the browser? (npmjs.com, google.com, github.com ...)
• Can you open "https://github.com/Dynatrace/dt-app-templates" in the browser?
• Can you use npm CLI, and if so, how did you make it work?
• Can you access your Dynatrace tenant, and if so, how did you make it work?

These might give us better overview of the situation and reason it's happening.

Best, Haris

[djmnyc]

Thanks Haris.

In response to your debug suggestions:

• Can your machine access any external webpage via the browser?  
  Yes, but of course limited to what is allowed via our corporate firewall.
   
• Can you open "https://github.com/Dynatrace/dt-app-templates" in the browser?
  Yes, no issues here.
  
  
• Can you use npm CLI, and if so, how did you make it work?
  Yes, I can run npm and npx.  I am not sure exactly what you are asking with "how did you make it work".  It was installed with the node.js installation.  I have not used npm or npx prior to attempting to work through the Dynatrace First app tutorial.  
  
  
• Can you access your Dynatrace tenant, and if so, how did you make it work?
  Yes, I can access our Dynatrace tenant without issue.  Again, not exactly sure what you are asking.  Is there a specific configuration or setup of our Dynatrace environment that you'd like to know?

When I run npx dt-app@latest create without specifying the local templates, I get an access error to GitHub.  That is why I downloaded the templates locally and provided the --template option as seen in this convo above.  Here is the exact error I receive when I do not add the template option:

[haris]

Thanks for the info, I'm checking this with the team and we'll get back to you as soon as possible.