TemplateURL must be a supported URL.

[christopheraustin1231]

I keep getting the following error when attempting to deploy the master template:

TemplateURL must be a supported URL:

TemplateURL: "!Sub s3://cf-templates-1e1gy8XXXXXXX-us-east-1/incident-response-lab-01-production-vpc.yaml"

I have tried to do some looking around (aws cloudformation deploy fails with nested stack: "TemplateURL must be an Amazon S3 URL." #3200) but I cant seem to figure out what I am doing wrong. Is this a bug or something like that. Based on the README I didnt think I was going to have any issues with the nested stacks.

Thank you.

[mlnrt]

Hello,
Thank you for trying to play with this demo. It is 3 years old though and should be fully re-written.
I would have to try it again myself but I don't understand the error because the code (see here) is suppose to substitute the bucket name and region in an https:// S3 URL.
But in your error message it shows an s3:// URL and it seems to take the !Sub command in the TemplateUrl string. Did you change something in the code to try to fix a previous issue?

[christopheraustin1231]

Thank you for the quick reply. I did make some changes to the URLS based on my attempts to deploy the template failing. I have tried it a few different times and each time I get a little closer to getting it right, but it has also escaped my mind what led me to changing them the first go around. I am going to give it a go again without editing the URLs and see how it goes. I will report back here once I am done.

Thank you for the quick response. I am enjoying this project. I am very new at all this so this is a learning experience for me.