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To resolve the "Error while checking license in Abp Suite" as described in question #9678, follow these steps:

1. Ensure your ABP Commercial license is valid and not expired.
2. Make sure you are logged in to the ABP CLI with your licensed account:

abp login <your-username>

3. If you are running in a container or remote environment, copy your local ABP CLI token file (access-token.bin) to the target environment:
   • For Windows: %UserProfile%\.abp\cli\access-token.bin
   • For Linux: /home/<user>/.abp/cli/access-token.bin
4. If you are using the AbpLicenseCode in your configuration, ensure it is correctly set as an environment variable or in your appsettings.json file, and that there are no extra spaces or line breaks.
5. Restart Abp Suite or your application after making these changes.

If the problem persists, refer to the official support thread for additional troubleshooting steps:

• Error while checking license in Abp Suite

Sources:

• Error while checking license in Abp Suite

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• The error No connection could be made because the target machine actively refused it. (localhost:44371) indicates that your application is trying to connect to an OpenID Connect authority at https://localhost:44371/.well-known/openid-configuration, but nothing is running on that address/port.

• In a tiered ABP solution, the .Web and .HttpApi.Host projects typically use the .AuthServer project as the OpenID Connect authority. If the .AuthServer is not running, or if the Authority URL in your configuration points to the wrong address, you will get this error.

How to fix:

1. Start the AuthServer

   • Ensure the .AuthServer project is running and accessible at the URL specified in your configuration (e.g., https://localhost:44371).

2. Check Configuration

   • In your .Web and .HttpApi.Host projects, verify the AuthServer:Authority setting in appsettings.json or appsettings.Development.json:

"AuthServer": {
       "Authority": "https://localhost:44371",
       "RequireHttpsMetadata": "false"
     }

• Make sure this matches the actual running URL of your .AuthServer project.

3. Check Launch Settings

   • In Properties/launchSettings.json of the .AuthServer project, confirm the application is set to launch on the correct port (44371).

4. Run All Projects

   • When developing locally, you must run the .AuthServer, .HttpApi.Host, and .Web projects simultaneously. If using Visual Studio, set them all as startup projects.

5. Firewall/Port Conflicts

   • Ensure no firewall or other application is blocking port 44371.

6. Production/Containerized Environments

   • If deploying, ensure the Authority URL is set to the deployed AuthServer's public address, not localhost.

Summary:
This error is caused by the .Web or .HttpApi.Host project being unable to reach the .AuthServer at the configured URL. Make sure the AuthServer is running and the configuration matches its actual address.

No validated source available for this specific query.

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To obtain the VAT number required for your ABP.IO license renewal and online purchase from Saudi Arabia, you should contact the ABP.IO sales or support team directly. They will provide the official VAT number for your invoice, which you can then verify on the ZATCA website.

Please use the official contact form to request the VAT number:

• https://abp.io/contact

Alternatively, you can review licensing and purchase details here:

• https://abp.io/pricing

These are the official channels for handling VAT and invoicing queries for ABP.IO purchases.

Sources:

• https://abp.io/contact
• https://abp.io/pricing

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• The System.ObjectDisposedException with Autofac's LifetimeScope in ABP Blazor applications typically occurs when a service or DbContext is accessed after its DI scope has been disposed. This is often seen under load or with improper async usage.

Common Causes and Solutions:

1. Async/Await Pitfalls:

   • If you start an async operation (e.g., in an event handler or background task) and do not properly await it, the DI scope may be disposed before the operation completes.
   • Always await async methods, especially in event handlers, background jobs, or distributed event handlers.

2. Manual Service Scope Management:

   • If you manually create service scopes, ensure all operations using the scope complete before disposing it.
   • Do not wrap injected services in using statements; let the DI container manage their lifetimes.

3. Unit of Work (UoW) Usage:

   • Do not disable the UnitOfWork pipeline unless you are managing it explicitly with IUnitOfWorkManager.
   • If you need a non-transactional UoW, use [UnitOfWork(isTransactional: false)] on your method.

4. Blazor Component Lifetimes:

   • Avoid holding references to injected services or DbContexts in fields that outlive the component's lifetime.
   • Do not use services after the component is disposed.

Example: Proper Async Usage in Event Handlers

public async Task HandleEventAsync(MyEventData eventData)
{
    // Always await async operations
    await _myService.DoSomethingAsync(eventData);
}

Example: Manual UnitOfWork Management

using (var uow = _unitOfWorkManager.Begin(requiresNew: true, isTransactional: false))
{
    // ... your logic here
    await uow.CompleteAsync();
}

Checklist:

• Ensure all async methods are awaited.
• Do not use disposed services or DbContexts.
• Let DI manage service lifetimes.
• Use UoW properly; do not disable unless you manage it manually.

If the problem persists under load:

• Review all background tasks, event handlers, and async code for proper scope and lifetime management.
• Check for any static or long-lived references to scoped services.

Sources:

• ABP Exception Handling
• ABP Support: ObjectDisposedException when UnitOfWork disabled
• ABP Support: ObjectDisposedException in distributed event handler

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To report and correct translation issues in commercial modules like Account Pro, you need to request the localization files from the ABP team, as these files are not publicly available. Please create an issue on the ABP Framework GitHub repository specifying the module and language. The team will provide you with the necessary abp-translation.json file(s) for the module, which you can then review and correct. After making your corrections, you can submit them back to the team for inclusion in future releases.

Source:

• https://abp.io/docs/latest/contribution/

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To ensure files uploaded programmatically are downloadable via the ABP File Management module, you must follow the same conventions and requirements as the module itself. Here are the key points and a step-by-step solution:

1. FileDescriptor Creation: You are correctly creating and saving the FileDescriptor entity and storing the file in the blob container. However, the File Management module expects certain fields and relationships to be set properly, and the upload process should match the module's logic.

2. Directory and Tenant Consistency: Make sure the directoryId you assign is valid and exists in the DirectoryDescriptor table for the current tenant. If the directory is not found or not associated with the correct tenant, the UI may not display or allow downloads.

3. Blob Storage Key: The blob is saved with fileDescriptor.Id.ToString(). This is correct, as the module uses the file's GUID as the blob key.

4. Download Token Requirement: The File Management module uses a download token for security. The download process is:

   • UI requests a download token for the file.
   • UI then calls the download endpoint with the file ID and token.
   • The backend validates the token and tenant before serving the file.

5. Common Issues:

   • If the file is not downloadable, check that the FileDescriptor is correctly linked to the directory and tenant.
   • Ensure the blob exists in the correct container and with the correct key.
   • If you use multi-tenancy, make sure the tenant context is set when saving both the entity and the blob.

6. Recommended Approach: Instead of manually inserting the FileDescriptor and saving the blob, use the File Management module's application service (e.g., FileDescriptorAppService) to upload files. This ensures all business logic, validation, and events are handled.

   Example (pseudo-code):

// Inject IFileDescriptorAppService
   var input = new CreateFileInputWithStream
   {
       DirectoryId = directoryId,
       Name = file.Name,
       MimeType = file.MimeType,
       Content = new MemoryStream(file.Content)
   };
   await _fileDescriptorAppService.CreateAsync(input);

If you must do it manually, double-check all fields and ensure the tenant context is correct.

7. Debugging Tips:
   • Check the database for the FileDescriptor and DirectoryDescriptor records.
   • Check the blob storage for the file.
   • Review logs for any errors during download.
   • Try uploading a file via the UI and compare the database and blob storage entries with your programmatic upload.

By following the above steps and using the module's services where possible, you will ensure compatibility with the File Management module's download process.

Sources:

• ABP File Management Module Documentation

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To ensure your Blazor WASM app always serves appsettings.json from wwwroot (not from the ABP Virtual File System), especially when using app.UsePathBase for a subfolder (e.g., "/Blazor"), follow these steps:

1. Place your appsettings.json in the wwwroot folder of your host project (not in the virtual file system or embedded resources).
2. Make sure you do NOT register appsettings.json as an embedded resource or virtual file in your project or any ABP module.
3. In your Program.cs or Startup, after app.UsePathBase("/Blazor"), ensure you have:

app.UseStaticFiles(); // This serves files from wwwroot, including appsettings.json
   app.MapAbpStaticAssets(); // This serves ABP static/virtual files

The order is important: UseStaticFiles should come before MapAbpStaticAssets.

4. When fetching appsettings.json in your Blazor WASM client, use a relative path that respects the base path:

fetch('./appsettings.json')

or, if you use a base tag in your index.html:

<base href="/Blazor/">

then

fetch('appsettings.json')

5. If you dynamically generate appsettings.json at runtime, ensure your deployment process writes it to wwwroot before the app starts.

6. If you use a subfolder (path base), make sure all static file requests (including appsettings.json and font files) are prefixed with the base path.

7. If you see JSON parsing errors, verify that the appsettings.json file is present, accessible, and contains valid JSON. A 404 or empty file will cause the error you see.

This approach ensures your appsettings.json is always served from wwwroot, not from the virtual file system, and works with dynamic updates and subfolder hosting.

Sources:

• Related ABP Support Ticket

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To ensure that changes in user roles and permissions are reflected immediately—without requiring the user to log out and log in again—you should enable ABP's dynamic claims feature. By default, claims in the authentication token or cookie are static and only refreshed upon re-authentication. The dynamic claims feature allows ABP to override the claims in the user's token/cookie with the latest values on every request, so changes (like role removals or additions) take effect immediately.

How to enable dynamic claims:

1. Open your module's configuration (e.g., in your YourProjectNameHttpApiHostModule).
2. In the ConfigureServices method, add:

Configure<AbpDynamicClaimsOptions>(options =>
   {
       options.IsEnabled = true;
   });

3. Rebuild and restart your application.

With this enabled, any changes to user roles or permissions will be reflected on the next request, and users will not need to log out and log in again to see updated access.

Sources:

• ABP Dynamic Claims Documentation

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To remove the lpx-menu-filter (the menu filter/search box) from the LeptonX Lite Angular side navigation, you need to customize or replace the sidebar component. ABP's LeptonX theme allows you to replace built-in components with your own.

Here’s how you can achieve this:

1. Create a Custom Sidebar Component

   • Generate a new Angular component (e.g., CustomSidebarComponent) that does not include the menu filter element.

2. Register Your Component as a Replacement

   • In your module (e.g., app.module.ts), use the replaceableComponents provider to replace the default sidebar (navbar) with your custom component.

   Example:

import { eThemeLeptonXComponents } from '@abp/ng.theme.lepton-x';

   // In your module's providers array
   this.replaceableComponents.add({
     component: CustomSidebarComponent,
     key: eThemeLeptonXComponents.Navbar,
   });

3. Remove the Filter/Search Box

   • In your custom sidebar component's template, simply omit the HTML for the filter/search input.

4. Rebuild and Run

   • Rebuild your Angular application. The sidebar will now render without the menu filter.

This approach ensures you have full control over the sidebar's content and appearance.

Sources:

• https://abp.io/docs/latest/ui-themes/lepton-x-lite/angular
• https://docs.abp.io/en/abp/latest/UI/Angular/Component-Replacement

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To integrate LDAP (Active Directory) authentication in an ABP MVC Core Razor application, follow these steps:

1. Install the necessary NuGet package:

   • Add the Volo.Abp.Account.Pro.Ldap package to your project.

2. Configure LDAP settings in your appsettings.json:

"Ldap": {
     "IsEnabled": "true",
     "Domain": "your-domain",
     "UserName": "ldap-user",
     "Password": "ldap-password",
     "ServerHost": "your-ldap-server",
     "ServerPort": "389"
   }

3. Enable the LDAP login feature:

   • Go to the Feature Management UI in your application.
   • Enable the Account.EnableLdapLogin feature for the relevant tenant or host.

4. Test your LDAP configuration:

   • You can use the provided ABP LDAP Test Application to verify your LDAP settings before integrating them into your main application.
   • Repository: https://github.com/abpframework/abp-samples/tree/master/AbpLdapSample

5. Clear the cache if you change feature settings to ensure the new configuration is applied.

After these steps, users will be able to log in using their Active Directory credentials.

Sources:

• https://abp.io/docs/latest/modules/identity/idap
• https://github.com/abpframework/abp-samples/tree/master/AbpLdapSample

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