Question
SiXworks
GB
Last activity: 28 May 2025 8:39 EDT
Pega Infinity '24.2 - Unable to preview any view in App Studio - "Error Code: 401 Message: Could not authenticate this request"
Hello,
Whilst running Pega Infinity '24.2, App Studio, I am no longer able to run my Views in "Preview".
This was working fine without issues previously, but when I examine the Pega logs I now see the following error: "Error Code: 401 Message: Could not authenticate this request " As a result the preview screen remains with a spinning wheel...
Please note my virtual machine settings remain the same as when this was previously working.
Please advise as I'm preparing to take the PCLSA part 2 exam.
I've also attached a screenshot of App Studio after selecting "Preview".
KR, Zenas
Pegasystems Inc.
GB
It is not clear if you are working off a Community Edition install.
Please make sure you are not using pega's constellation service that is not usable for end users. Please set up and use your own constellation service server. To set one up, you can find the link here.
SiXworks
GB
I'm running the "LinuxLite-Pega242.ova" on my Oracle VM
Pega recommends this for the CPLSA part 2. build.
Is this classified as the community version?
It was downloaded from the CPLSA 24.2 Course- The LSA Mindset/ The CPLSA Mission Challenges.
Are you saying this requires further configuration to run Views in Preview? As this had worked without any additional configuration as mentioned.
KR,
Zenas
SiXworks
GB
In addition to my earlier reply, I can confirm the DSS value for my "ConstellationSvcURL" is:
"https://staging.constellation.pega.io/c11n-appstatic"
This value was pre-set.
To build my own Constellation AppStatic Service, as described in:
It says I must have the following knowledge in Docker:
To build a custom Constellation AppStatic Service Docker image, you need to have:
- Good knowledge of Docker (images, containers, start, stop, background execution, logs, ports, repos) and Dockerfile build.
- Good knowledge of Node.js install and launch.
Neither of which I have, or required to have for this version. As the Preview in App Studio worked previously.
As mentioned, I've installed my version of LinuxLite-Pega242.ova from; Pega Academy.
https://academy.pega.com/topic/cplsa-mission-challenges/v5/in/87441/86791
Please let me know if you require anything else to assist in a resolution to this issue.
Kind regards,
Zenas
Pegasystems Inc.
GB
@Zenas Morris as this is an Academy/ VM issue, please use the Contact Us form listed on the Get Help pages.
If you are having technical issues with a Pega instance, please contact the Pega Academy support team.