When you add a new microservice and generate entities with ABP Suite, the permissions are registered in the database, but if the new permission group does not appear in the web UI for role assignment, it is usually due to one of the following reasons in a microservice solution:
Application Contracts Reference Missing:
The new microservice's Application.Contracts project must be referenced by the IdentityService (or the service responsible for permission management). This is required so that the permissions are registered and exposed to the permission management UI. If the reference is missing, the permission definitions will not be loaded into the permission management system.
Rebuild and Restart All Services:
After adding a new microservice and updating references, you must rebuild the entire solution and restart all related services (especially the IdentityService and AdministrationService). This ensures that the new permissions are discovered and loaded.
Permission Provider Registration:
Ensure that your new microservice's PermissionDefinitionProvider is properly implemented and included in the Application.Contracts project. The provider should define the permission group and permissions.
Database Migration:
Make sure you have applied the latest database migrations for the new microservice and the Administration database.
Cache Issues:
Clear the distributed cache (e.g., Redis) after making changes to permissions, as permission definitions are cached.
Checklist to resolve:
IdentityService.Application.Contracts to your new microservice's Application.Contracts.PermissionDefinitionProvider is present and correct.This approach aligns with common ABP microservice conventions for permission management.
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The error occurs because Hangfire requires its storage (JobStorage) to be initialized before any Hangfire API is used. When you add Hangfire dependencies and initialization code to your DbMigrator project, but do not configure Hangfire storage (via AddHangfire), it throws this exception.
The recommended approach is: Do not add Hangfire modules or initialization code to your DbMigrator project. The DbMigrator's purpose is to run database migrations and seed data, not to execute background jobs. Hangfire should only be configured in your main web host (or background worker) projects where background jobs are actually processed.
If you need to keep Hangfire NuGet packages for dependency reasons, ensure you do NOT call AddHangfire or add the Hangfire module in your DbMigrator. Remove any [DependsOn(typeof(AbpBackgroundJobsHangfireModule))] or similar from your DbMigrator module.
If you must share code between projects, use a shared library for job definitions, but keep Hangfire configuration and module dependencies out of the DbMigrator.
This is a common and recommended separation in ABP solutions:
You do not need to uninstall Hangfire from your solution—just ensure the DbMigrator project does not depend on or initialize Hangfire.
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To limit the number of customers (tenants) and users that your customer can create in an ABP multi-tenant application, you can use the built-in multi-tenancy and SaaS infrastructure. ABP provides mechanisms to control tenant resources, such as limiting the number of users or other resources per tenant, typically through the use of Editions and Features.
You can define custom features (e.g., "MaxUserCount", "MaxCustomerCount") and assign them to Editions. Then, assign Editions to your tenants. In your business logic, you can check these feature values to enforce the limits when creating new users or customers.
There is no direct UI in the Angular management interface for setting these limits out-of-the-box, but the infrastructure is available for you to implement this logic using features and editions.
Example steps:
Example code for checking a feature value:
var maxUserCount = await FeatureChecker.GetAsync<int>("MaxUserCount");
if (currentUserCount >= maxUserCount)
{
throw new BusinessException("User limit reached for this tenant.");
}
For more details, see the official documentation on limiting tenant resources.
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The error "IDX10223: Lifetime validation failed. The token is expired." indicates that the JWT access token used by your Hangfire job is expired at the time of execution. This is a common issue when background jobs are scheduled to run after the token's expiration, especially in distributed or tiered ABP applications.
To resolve this, you should ensure that your Hangfire jobs acquire a fresh access token before making authorized API calls. Do not cache or reuse tokens for long-running or recurring jobs.
In microservice or tiered ABP setups, the recommended approach is to use the client credentials flow to programmatically request a new token for each job execution. This ensures the token is always valid.
If you are using ABP's built-in remote service proxies, configure them to use the client credentials flow and set up the necessary client in your IdentityServer/OpenIddict configuration.
Avoid using user tokens for background jobs, as they will expire and cannot be refreshed without user interaction.
If you are using distributed cache for tokens, ensure the cache expiration is not longer than the token's lifetime.
This approach aligns with common ABP conventions, but specific official documentation for this exact scenario is not available.
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To achieve a true Blazor WebAssembly (WASM) solution in ABP—where the client is a standalone WASM project (not hosted inside the ASP.NET Core project)—and to enable hot reload and "Edit and Continue" for faster development, you should use the "Layered Solution" template with the Blazor WebAssembly option. This separates the Blazor client and server, allowing you to run and debug the client project independently.
abp new MyProject -t app -u blazor-wasm
MyProject.Blazor (Blazor host project)MyProject.Blazor.Client (Blazor WASM client)MyProject.HttpApi.Host (API backend)Project Structure:
*.Blazor.Client project is a pure WASM app. You can run and debug it directly, enabling hot reload and "Edit and Continue".*.Blazor project is the host (optional for deployment, not needed for local development).Development Workflow:
MyProject.HttpApi.Host (API) and MyProject.Blazor.Client (WASM) separately.MyProject.Blazor.Client as the startup project for hot reload and fast debugging.Migrating Your Existing Solution:
*.Blazor.Client project.Bundling and Global Assets:
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Starting from ABP Framework v8.3, there was a change in how audit properties (such as LastModifierId and LastModificationTime) are updated when navigation (child) properties change. In previous versions, updating a child entity through a parent would automatically update the parent's audit columns. However, after the update, this behavior was modified to only update the parent's audit columns if the navigation property itself changes, not just the child entity's data.
This means that if you update only the child entity (e.g., a collection or owned entity) and not the parent entity or its navigation property reference, the parent's audit columns will not be updated automatically.
To restore the previous behavior, you need to explicitly update the parent entity or set a property on the parent to trigger the audit property update when a child entity changes.
Example workaround:
// After updating the child entity
parentEntity.LastModificationTime = DateTime.Now; // or any other property change
await _parentRepository.UpdateAsync(parentEntity);
Alternatively, you can review your domain logic to ensure that any child entity update also marks the parent as modified if you want the audit columns to reflect changes in child entities.
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The ABP Angular service proxy generator does not currently generate the type alias export type StringValues = string[]; automatically for DTOs that use types like IFormFile with properties such as headers: Record<string, StringValues>. This is a known limitation.
As a workaround, you need to manually add export type StringValues = string[]; to your generated proxy files after each regeneration.
This issue is related to how the proxy generator handles certain .NET types and their translation to TypeScript. There is an open issue for similar proxy generation problems:
For more details on Angular service proxy generation, see the official documentation:
Currently, there is no built-in way to customize or extend the proxy generator to automatically include this type alias. You may consider scripting this addition as part of your build process until the generator is improved.
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To resolve the "ABP-LIC-ERROR - License check failed for 'Volo.Abp.AspNetCore.Mvc.UI.Theme.Commercial-v9.2.1.0'" error in Azure App Service, ensure the following:
AbpLicenseCode must be available to your application at runtime. In Azure App Service, the recommended approach is to set it as an environment variable in the App Service configuration.Name: AbpLicenseCode
Value: <your-license-code>
Check Configuration File Deployment
appsettings.json or appsettings.secrets.json to store the license code, ensure these files are actually deployed and present in the running environment. Missing configuration files are a common cause of this error.Environment Variable Precedence
Case Sensitivity
AbpLicenseCode (case-sensitive).Restart After Changes
Check for Typographical Errors
Review Application Logs
These steps resolve most license code loading issues in Azure App Service and containerized ABP deployments.
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To download the source code for the LeptonX theme for Angular, you should use the following command, as documented in the official ABP documentation:
abp get-source Volo.Abp.LeptonXTheme
abp get-source Volo.Abp.LeptonXTheme --version 4.2.2) is correct and will download the available source code for the LeptonX theme.Regarding the difference:
If you need the source code for additional packages (like "lepton-x", "lepton-x-abp-core", "lepton-x-core"), these are included as part of the LeptonXTheme source code structure. There is no separate command to download them individually.
If you encounter errors with abp add-package ... --with-source-code, it is likely because the source code for those packages is not distributed separately, but as part of the main LeptonXTheme source.
For more details, see the official documentation:
Your folder structure matches the expected layout for the LeptonXTheme Angular source code.
If you need to build or understand the structure, refer to the documentation inside the downloaded package or the official docs.
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To map all exceptions of a specific type (such as BusinessException) to a particular HTTP status code (e.g., 422 Unprocessable Entity) in ABP Framework, you need to configure custom mappings in your application's startup. While the built-in Map method is for error codes, you can achieve type-based mapping by replacing the default status code finder service.
Here's how you can do it:
using System.Net;
using Volo.Abp.AspNetCore.ExceptionHandling;
using Volo.Abp.ExceptionHandling;
public class CustomHttpExceptionStatusCodeFinder : DefaultHttpExceptionStatusCodeFinder
{
public override HttpStatusCode GetStatusCode(HttpExceptionStatusCodeContext context)
{
if (context.Exception is BusinessException)
{
return (HttpStatusCode)422; // Unprocessable Entity
}
return base.GetStatusCode(context);
}
}
using Microsoft.Extensions.DependencyInjection;
using Volo.Abp.AspNetCore.ExceptionHandling;
public override void ConfigureServices(ServiceConfigurationContext context)
{
context.Services.AddTransient<IHttpExceptionStatusCodeFinder, CustomHttpExceptionStatusCodeFinder>();
}
This will ensure that all exceptions of type BusinessException are returned with HTTP status code 422.
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