Why is error 400 output on uploading a NuGet package to Nexus using Curl?

I try uploading a NuGet package to Nexus using Curl from command line, but I get the error 400.
The package is not in the repository.

ls -l azure.core.1.24.0.nupkg-rw-rw-r--. 1 ec2-user ec2-user 666796 Jun  8 11:58 azure.core.1.24.0.nupkgcurl -v   -u admin:pwd --upload-file ./azure.core.1.24.0.nupkg  http://10.20.1.78:8081/repository/package_nuget_for_portal/azure.core.1.24.0.nupkg*   Trying 10.211.1.78...* TCP_NODELAY set* Connected to 10.20.1.78 (10.20.1.78) port 8081 (#0)* Server auth using Basic with user 'admin'> PUT /repository/package_nuget_for_portal/azure.core.1.24.0.nupkg HTTP/1.1> Host: 10.20.1.78:8081> Authorization: Basic YWRtaW46MXEydzNlNHI=> User-Agent: curl/7.61.1> Accept: */*> Content-Length: 666796> Expect: 100-continue>< HTTP/1.1 400 Bad Request< Date: Sun, 12 Jun 2022 07:49:12 GMT< Server: Nexus/3.37.3-02 (OSS)< X-Content-Type-Options: nosniff< Content-Security-Policy: sandbox allow-forms allow-modals allow-popups allow-presentation allow-scripts allow-top-navigation< X-XSS-Protection: 1; mode=block< Content-Type: application/xml< Content-Length: 228< Connection: close<<?xml version="1.0" encoding="utf-8" standalone="yes"?><error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"><code>400</code><message xml:lang="en-US">Multipart request required</message></error>

What do I miss here?