@atripp

5.2.27 has fixed the issue. Thank you so much!

@atripp

I did update proget manually, I built my own docker image for 5.2.25, deployed it, same issue (that version did fix the helm 3 support that I was waiting for as well). Today I've updated to 5.2.26, same 500 issue as before.

Message: 
A 500 error occurred in (unknown feed): The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

Details: 
URL: http://proget.mywebsite.com/v2/myapp/manifests/1.0.0
Referrer: (not set)
User: (unknown)
User Agent: docker/19.03.5 go/go1.12.12 git-commit/633a0ea kernel/4.19.76-linuxkit os/linux arch/amd64 UpstreamClient(Docker-Client/19.03.5 \(windows\))
Stack trace:

if you know where proget puts the logs in the linux container or a way to set the standard out more verbosely so I can get a better stack-trace for your guys, let me know.

@ben

yeah, the stacktrace is empty

@ben

I updated to 5.2.25 where PG-1669 was fixed. This still appears to be an issue, same warning as above, only difference is the User Agent field

User Agent: docker/19.03.3 go/go1.12.10 git-commit/a872fc2 kernel/4.4.0-165-generic os/linux arch/amd64 UpstreamClient(Docker-Client/19.03.3 \(linux\))

Currently I cannot upload helm 3 (apiVersion: v2 in chart.yaml) to the feed.

When I attempt to push through the UI I get the following message:

The file you uploaded is not a Helm chart.

Please select a new file and try again.

attempting to do through powershell I get

Invoke-WebRequest : Helm chart apiVersion "v2" does not match expected value 
"v1".

We just started using helm after helm 3 came out so all our charts are apiVersion:v2, no tiller component, all clientside, so it made our lives a lot easier. but we cannot upload or use our charts so it'd be nice if proget supported it.

here's a guide on what's changed if needed, but I would imagine it's as easy as including "v2" apiVersion.

I'm getting the same issue. Output from diagnostic center is :

A 500 error occurred in (unknown feed): The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

URL: http://proget.mywebsite.com/v2/docker/myapp/manifests/1.0.0
Referrer: (not set)
User: (unknown)
User Agent: docker/19.03.2 go/go1.12.8 git-commit/6a30dfc kernel/4.4.0-170-generic os/linux arch/amd64 UpstreamClient(Docker-Client/19.03.2 \(linux\))
Stack trace: