title: CultureAndRegionInfoBuilder use in .NET Core
body: <p>I have another problem about add culture in Linux Docker.</p>
  <p>A few years ago, I was able to add <code>en-JP</code> using the following code:</p>
  <pre><code>var newCulture = new CultureAndRegionInfoBuilder(&quot;en-JP&quot;, CultureAndRegionModifiers.None);
  newCulture.LoadDataFromCultureInfo(english);
  newCulture.LoadDataFromRegionInfo(new RegionInfo(&quot;JP&quot;));
  newCulture.CultureEnglishName = &quot;English (Japan)&quot;;
  newCulture.CultureNativeName = &quot;English (Japan)&quot;;
  newCulture.Register();
  </code></pre>
  <p>When code is run in .NET Framework 4.8, it works - but it does not work on .NET 6 which run in a Linux Docker container.</p>
  <p>Do you have any idea to add culture info in Docker?</p>
  <p>Whatever can do it in other docker image</p>
  <p>Thank you</p>