Package Manager Error: Unable to Retrieve Asset Store Package Updates (404 Not Found)

Unity Engine
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1

Each time I open the Package Manager Window to check the latest versions of Asset Store packages, I encounter the following log:

[Package Manager Window] Error while getting product update details: 404 Not Found. Something went wrong. Please try again later. [Error 404]
UnityEditor.AsyncHTTPClient:Done (UnityEditor.AsyncHTTPClient/State,int)

After investigating, I found that when requesting the following URL using curl:

https://packages-v2.unity.cn/-/api/product-update-info?productIds=239351,129127,47200,218017,247926,276575,218348,218364,218367,219767,221515,224030,227758,229307,198858,287785,27676,65554,177877,157729,68436,170794,240197,275893,225546,292434,229717,154271,233073,202502

I received the response:

HTTP/1.1 404 Not Found.

However, when I send the same request to this URL using curl:

https://packages-v2.unity.com/-/api/product-update-info?productIds=239351,129127,47200,218017,247926,276575,218348,218364,218367,219767,221515,224030,227758,229307,198858,287785,27676,65554,177877,157729,68436,170794,240197,275893,225546,292434,229717,154271,233073,202502

I get the response:

HTTP/1.1 401 Unauthorized

(This is expected because I did not include the Authorization parameter in the request.)

It looks like https://packages-v2.unity.cn might have been deprecated, and the correct server is https://packages-v2.unity.com. How should I resolve this issue?

Unity Editor version: 2023.2.20f1
Location: Mainland China

2

Hello,

You can manually retrieve package details using curl on the .com endpoint with appropriate authorization tokens. To generate the token:

Log in to Unity Hub.
Use a tool like Postman or browser developer tools to capture an authorized request and extract the token.
Append the token to your curl requests.

EdFinancial com

3

Thank you for your explanation. However, my concern is that while https://packages-v2.unity.com works as expected, https://packages-v2.unity.cn is currently unavailable. Since my editor uses https://packages-v2.unity.cn to fetch the latest package versions, this seems to be causing the issue.