To resolve the "Cannot find the en/es locale file" errors after migrating your ABP Angular application, you need to ensure that the Angular localization system is properly configured for the new ABP version (9.2.1). The error and the console message point to a missing locale file registration, which is required in ABP Angular v9+.
Here’s how to fix it:
Register Locales in CoreModule
In ABP Angular 4.x and above, you must explicitly register supported locales using the registerLocale function in your app.module.ts:
import { registerLocale } from '@abp/ng.core/locale'; // or for commercial: import { registerLocale } from '@volo/abp.ng.language-management/locale';
@NgModule({ imports: [ // ... CoreModule.forRoot({ // ...other options, registerLocaleFn: registerLocale() }), // ... ], // ... }) export class AppModule {}
2. **Do Not Manually Register Angular Locales for ABP**
The manual `registerLocaleData(localeEs, 'es')` is only needed for Angular’s built-in pipes (like DatePipe), not for ABP’s localization system. For ABP, use the `registerLocale` function as shown above.
3. **Ensure Locale Files Exist**
Make sure you have the locale files (e.g., `en.json`, `es.json`) in the correct location (`src/assets/abp/locales/` by default). If you are missing these files, you can copy them from a fresh ABP template or generate them as described in the documentation.
4. **Reference**
- Official documentation: [ABP Angular Localization - Adding a New Culture](https://abp.io/docs/latest/framework/ui/angular/localization#adding-a-new-culture)
By following these steps, the "Cannot find the en/es locale file" errors should be resolved, and your localization will work as expected in ABP 9.2.1.
Sources:
- https://abp.io/docs/latest/framework/ui/angular/localization#adding-a-new-culture
---
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To ensure that date filters in ABP MVC applications are parsed according to the selected UI language (e.g., DD/MM/YYYY for Italian), you need to configure both the client-side and server-side to use the correct culture settings.
Set the Culture in Startup:
Make sure your application is configured to use the correct culture based on the user's selection. In Startup.cs (or Program.cs for .NET 6+), configure localization:
var supportedCultures = new[] { "en-US", "it-IT" }; app.UseRequestLocalization(new RequestLocalizationOptions { DefaultRequestCulture = new RequestCulture("it-IT"), SupportedCultures = supportedCultures.Select(c => new CultureInfo(c)).ToList(), SupportedUICultures = supportedCultures.Select(c => new CultureInfo(c)).ToList() });
2. **Client-Side Date Format:**
If you are using DataTables or similar components, ensure the date picker and filter inputs use the correct format. For example, set the date picker to use `DD/MM/YYYY` for Italian.
```javascript
$('#PaymentDateMin').datepicker({
format: 'dd/mm/yyyy',
language: 'it'
});
Model Binding and Validation: ASP.NET Core model binding uses the current culture to parse dates. If the request culture is set correctly (as above), the model binder will expect dates in the format of the current culture.
HTML Input Type:
If you use <input type="date">, browsers may enforce the yyyy-MM-dd format regardless of culture. To allow localized input, use <input type="text"> with a date picker that matches the culture.
Summary:
<input type="date"> if you want localized formats.This approach ensures that date filters are parsed according to the selected UI language, preventing errors like the one you described.
Sources:
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The ABP Angular AuthService and related infrastructure are designed to work with JWT tokens, as they rely on decoding the token to extract user information (such as in RememberMeService and other identity-related services). Reference tokens (opaque tokens) cannot be parsed on the client side, which leads to runtime errors when the Angular code attempts to decode or extract claims from them.
Key Points and Recommendations:
AuthService.login() and Reference Tokens:
RememberMeService and Token Parsing:
Recommended Angular-side Implementation:
Summary of Steps:
Alternative:
No verified source available for this specific query. This approach aligns with common ABP conventions, but specific official documentation for this exact scenario is not available.
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To download the source code of the LeptonXTheme (especially the Pro version), you must use the correct module name. The error in your screenshot occurs because the module name Volo.Abp.LeptonXTheme.Pro is not recognized by the ABP CLI.
For LeptonX (Pro), the correct command is:
abp get-source Volo.Abp.LeptonXTheme.Pro
However, if this command fails and you see "No module was found with this name," it may indicate that your license or ABP version does not grant access to this module, or the module name/version is not available for download.
Key points:
If the problem persists, contact Volosoft support with your license details, as access to LeptonXTheme.Pro source code is restricted to eligible commercial customers.
Sources:
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[ABP-LIC-0020 - License code not found!] indicates that the application cannot read the AbpLicenseCode from your configuration at runtime, even if it is present in your appsettings.secrets.json.To resolve this in Azure Container Apps, follow these steps:
Verify Environment Variable Injection
Azure Container Apps may not automatically use appsettings.secrets.json. Instead, ensure the license code is injected as an environment variable:
AbpLicenseCode with your license value in the Azure Container App configuration.Check File Mounting and Build Artifacts
appsettings.secrets.json is present in the container at runtime. Sometimes, build or deployment steps may exclude this file.Configuration Precedence
Restart All Containers
Check for Typographical Errors
AbpLicenseCode (case-sensitive).Review Application Logs
Example: Setting Environment Variable in Azure Portal
Name: AbpLicenseCode Value:
- Save and restart the container.
This approach is recommended and resolves most license code loading issues in containerized ABP deployments.
Sources:
- https://abp.io/support/questions/6663
- https://abp.io/support/questions/9263
- https://abp.io/QA/Questions/245/ABP-LIC-0008---License-check-failed-for-'XXXXX'
---
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The default ABP SaaS + Payment integration expects that a tenant already exists and is authenticated before subscribing to an edition. The code:
var paymentRequest = await SubscriptionAppService.CreateSubscriptionAsync(editionId, CurrentTenant.GetId());
assumes CurrentTenant.GetId() is available, meaning the user is already associated with a tenant.
If you want users to sign up and select an edition in a single flow (i.e., create a tenant and subscribe to an edition at the same time), you need to:
CreateSubscriptionAsync with the new tenant's ID and the selected edition.This approach is not provided out-of-the-box, but it is a common customization. You will need to orchestrate tenant creation and subscription in your own controller or service.
By default, the "host" user is the super admin who manages tenants, editions, and other global settings. If you do not want to expose any host-level functionality to end users:
CurrentTenant.Id and redirecting to login/registration if not present.This way, only tenant users (not host) can access the application, and all users must be logged in.
Sources:
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The ABP Module Entity Extension system supports adding extra properties to existing entities, including lookups using the UI.Lookup option. However, as of v9.2.1, it does not natively support multi-select lookups or many-to-many relationships via the extension mechanism. The UI.Lookup feature is designed for single-value selection (e.g., a single Guid or string), not for multiple selections or storing comma-separated values.
For a many-to-many relationship (e.g., File <-> Tag), ABP recommends modeling this directly in your domain and database using EF Core's standard many-to-many relationship features. This is not directly supported by the module extension system, but you can implement it by creating a join entity (e.g., FileTag) and managing the relationship in your own code and UI.
If you want to store a multi-select as a comma-separated string using module extensions, this is not supported out-of-the-box. The extension system does not provide a built-in multi-select UI or automatic serialization/deserialization of multiple values into a single string property.
Guidance:
Recommended (Many-to-Many):
FileTag) between your File entity and Tag entity.Workaround (Comma-Separated String):
Summary:
Sources:
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This is a known issue in ABP Suite/Blazor Server projects when adding a "File" property to an entity, especially in modular or tiered solutions. The generated .razor.js file (e.g., Products.razor.js) is created in the module's Blazor project, but during development, it is not served correctly, resulting in 404 errors and the Blazor UI freezing or failing to load the file input.
This problem has been reproduced and acknowledged by the ABP team. The root cause is that static web assets from module projects are not always correctly discovered and served in development mode, especially for dynamically imported JS files generated by Suite for file properties.
Current Status:
Reference:
What to do now:
.razor.js file to the main Blazor project's wwwroot or ensure it is included as a static asset, but this is only a stopgap until the official fix is released.Sources:
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To fix the "Expected depth to be zero at the end of the JSON payload" error when returning a DataSourceResult (such as from Telerik) in an ABP HTTP API, you need to ensure that the returned object is properly serialized and compatible with System.Text.Json (the default serializer in ABP). Telerik's DataSourceResult may contain complex or non-serializable types, or may be serialized in a way that System.Text.Json cannot handle by default.
Here are the recommended steps to resolve this issue:
Avoid Returning Complex Types Directly
Instead of returning DataSourceResult directly from your API method, map its data to a DTO or a simpler object that is easily serializable.
Use Newtonsoft.Json if Required
If you must return DataSourceResult, configure your API to use Newtonsoft.Json instead of System.Text.Json, as Newtonsoft has better compatibility with complex types like DataSourceResult.
In your *.HttpApi.Host project, update your Startup.cs or module configuration:
context.Services.AddControllers() .AddNewtonsoftJson(options => { options.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore; // Add other settings as needed });
And in your module:
```csharp
Configure<AbpAspNetCoreMvcOptions>(options =>
{
options.JsonSerializerIsSystemTextJson = false;
});
Check for Open/Unclosed JSON Objects
Ensure that your action method is not returning an object with open references or circular dependencies. If you use navigation properties, project only the required fields into DTOs.
Validate the Output
Before returning, serialize your result to JSON in a test to ensure it is valid and closed.
Example: Map DataSourceResult to DTO
public class TripGridResultDto { public IEnumerable
public async Task
This ensures the returned object is simple and serializable.
**Summary:**
- Prefer returning DTOs or simple objects.
- Switch to Newtonsoft.Json if you must return complex types.
- Avoid circular references and ensure all objects are serializable.
Sources:
- [Export Excel files from ABP Blazor application](https://abp.io/community/articles/wm7nnw3n)
- [ABP Support: DTO with Type property causes serialization error](https://abp.io/support/questions/2902)
---
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In ABP microservice or separated AuthServer scenarios, the [Authorize] attribute with a permission name (e.g., [Authorize("Permission.View")]) depends on correct claim propagation and permission definition registration across all relevant modules.
If _permissionChecker.IsGrantedAsync("Permission.View") returns true but [Authorize("Permission.View")] returns 403, the most common causes are:
In microservice solutions, you must ensure:
public override void PreConfigureServices(ServiceConfigurationContext context)
{
context.Services.PreConfigure<AbpIdentityServerBuilderOptions>(options =>
{
options.UpdateAbpClaimTypes = false;
});
}
Also, verify that the API module references the correct Application.Contracts and PermissionDefinitionProvider, and that the permission is visible in the Permission Management UI for the API service.
If the permission is only defined in the AuthServer, the API module will not recognize it for [Authorize] checks.
For more details, see:
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