AbpUserRequestCultureProvider 返回了以下不受支持的文化

Question

When I check my logs on my Angular ASP.NET application, I'm repeatedly getting this error message:

WARN 2018-07-19 05:43:09,596 [42 ] calization.RequestLocalizationMiddleware - AbpUserRequestCultureProvider returned the following unsupported cultures 'null'. WARN 2018-07-19 05:43:09,596 [42 ] calization.RequestLocalizationMiddleware - AbpUserRequestCultureProvider returned the following unsupported UI Cultures 'null'. WARN 2018-07-19 05:43:09,596 [42 ] calization.RequestLocalizationMiddleware - AbpLocalizationHeaderRequestCultureProvider returned the following unsupported cultures 'null'

Has anyone had any experience with this, or what could be causing the issue?

Any help would be appreciated.

Answer 1

It means ABP couldn't get user's language from header of the request. Normally it checks the header .AspNetCore.Culture and returns null if not found. Check your request headers...

A sample header value is below;

.AspNetCore.Culture=c=en|uic=en

• c:Culture
• uic: Ui Culture

Answer 2

我的标题失败了： .AspNetCore.Culture ，这个适用于我的项目：标题： Accept-Language值：“en-US”。

Answer 3

'null' culture issue was fixed in Prevent null being saved into user's DefaultLanguage (ABP 4.9, Sep 2019).

Another issue is that Nginx as a reverse proxy will not pass headers that contain a period.

In this case, the ".AspNetCore.Culture" header.

Related: Cannot get header that contains a period from NGINX for the "Abp.TenantId" header (ABP 4.4, Mar 2019).

ABP 6.0+

AbpLocalizationHeaderRequestCultureProvider.HeaderName is configurable.

1. In Startup.cs#L132 , get AbpLocalizationHeaderRequestCultureProvider and set its HeaderName :

// app.UseAbpRequestLocalization();
   app.UseAbpRequestLocalization(options =>
   {
       var headerProvider = options.RequestCultureProviders.OfType<AbpLocalizationHeaderRequestCultureProvider>().First();
       headerProvider.HeaderName = "AspNetCore-Culture";
   });

2. In app-initializer.ts#L122 , replace '.AspNetCore.Culture' with 'AspNetCore-Culture' :

// '.AspNetCore.Culture': `c=${cookieLangValue}|uic=${cookieLangValue}`,
    'AspNetCore-Culture': `c=${cookieLangValue}|uic=${cookieLangValue}`,

Below ABP 6.0

1. Copy AbpLocalizationHeaderRequestCultureProvider with the patch to your project as MyLocalizationHeaderRequestCultureProvider .
2. In Startup.cs#L132 , insert an instance of MyLocalizationHeaderRequestCultureProvider into RequestCultureProviders after setting its HeaderName .

// app.UseAbpRequestLocalization();
   app.UseAbpRequestLocalization(options =>
   {
       var headerProvider = new MyLocalizationHeaderRequestCultureProvider();
       headerProvider.HeaderName = "AspNetCore-Culture";
       options.RequestCultureProviders.Insert(2, headerProvider);
   });

3. In app-initializer.ts#L122 , replace '.AspNetCore.Culture' with 'AspNetCore-Culture' .

Alternative

You can turn off ignore "invalid" headers in Nginx.