Here is an example of how to configure the JSON serializer to use `ReferenceHandler.Preserve` in your

JSON options in `Startup.cs` or `Program.cs`: ```csharp services.AddControllers() .AddJsonOptions

In the Program.cs of blazor client or in my host module?

We cannot share that code because is our enterprise production code.

```cs // This is for MVC JsonSerializer Configure(options => { options. }); // This is for ABP

This can either be due to a cycle or if the object depth is larger than the maximum allowed depth of

This can either be due to a cycle or if the object depth is larger than the maximum allowed depth of

I found this support ticket https://abp.io/support/questions/8143/A-cycle-during-the-cache-serialization

but is not clear how to configure it.

This allows you to conditionally execute logic only for methods or classes marked with your attribute

This allows you to conditionally execute logic only for methods or classes marked with your attribute

My goal is to ensure that whenever a service or method is decorated with [CheckBaseModelProviderAttribute

Is there a way in ABP 9.1.0 to conditionally apply an interceptor based on a custom attribute?

Is AbpCastleProxyOptions available in this version, or is there an alternative way to wire up the interceptor

Ideally, I would like to use either: The [InterceptedBy] attribute (if available), or A custom attribute

that I can define and use to selectively apply interceptors to specific services or methods.

[image.png](/QA/files/3a1b2a1369690196c4389183c680cfb5.png) My questions: Is [InterceptedBy] supported

If not, what is the recommended way to apply a custom interceptor to only specific services or methods

Provide us with the following info: 🧐 Hint: If you are using the ABP Studio, you can see all the information

- The error you are experiencing on the standard ABP Audit Log Blazor page is caused by a NullReferenceException

This typically happens when the component tries to access a property or value that is unexpectedly null

- This issue is often related to missing or null values in the audit log records, especially for fields

-") when the value is missing

- https://abp.io/support/questions/9397 - This is not a database or configuration issue, but a UI

Hi, I have this strange and very random error just by opening (or changing pages) the audit log standard

[image.png](/QA/files/3a1b29668bc310f8ef092a6f3beedc5b.png) this is the stack trace I got from the

[Id], [a].[AuditLogId], [a].[ChangeTime], [a].[ChangeType], [a].[EntityId], [a].

random, if I refresh the page the problem may disappear, but can (and usually does) reappear a couple

The page is standard ABP without any overrides.

Without persistence, the revocation endpoint cannot find and invalidate the token, so the token remains

though it returns a success response. - There is no supported way to revoke tokens without persistence

Ensure you have installed the OpenIddict Entity Framework Core stores or another supported store. 2.

Yes Manually copy the token and then log out. You can still call the API using the token.

Is there a way to prevent the access of the logout token without using a persistent database?

When revoking a Token, do we need to first enable the persistent token feature of OpenIddict?

If so, are there any other methods to cancel the Token?

I don't want to accomplish this by converting the Token into a Guid.

The call to /connect/revocation returns a 200 status code, but the token has not been invalidated.

Yes I have already tried that (I listed the commands I used). But no joy

This issue is not related to Login info. the problem is module name.

- This error typically occurs when there is a problem with authentication or license validation while

403 Forbidden or similar) was returned instead of the expected JSON, which is often due to a failed

- There are no network issues or firewalls blocking access to abp.io.

We are currently unable to download the source dode for lepton x pro using the suite. !

source code for Volo.Abp.LeptonXTheme.Pro v4.2.2 - System.Text.Json.JsonException: '<' is an invalid

Path: $ | LineNumber: 0 | BytePositionInLine: 0. ---> System.Text.Json.JsonReaderException: '<' is

AbpIoSourceCodeStore.cs:line 337 at Volo.Abp.Cli.ProjectBuilding.AbpIoSourceCodeStore.GetAsync(String name

second generation of the ABP CLI.

, you need to ensure that the Angular localization system is properly configured for the new ABP version

The error and the console message point to a missing locale file registration, which is required in ABP

your `app.module.ts`: ```typescript import { registerLocale } from '@abp/ng.core/locale'; // or

core issue is that the locale files are not being found by the dynamic import, likely due to a path

or webpack configuration mismatch.

, I see these runtime errors in the browser console: • Cannot find the en locale file. !

to Spanish: NG0701: Missing locale data for the locale "es".

Spanish locale using registerLocaleData, which prevents the DatePipe error — but the console warnings

like Cannot find the en locale file and Cannot find the es locale file still appear, so it doesn’t feel

abp.png](/QA/files/3a1b25d5a5f1efa05c48979ac4b9c8fa.png) I create a new abp project and compare with

date, no problem: !

If the request culture is set correctly (as above), the model binder will expect dates in the format

To allow localized input, use `` with a date picker that matches the culture. 5.

The problem with the date parsing is still occurring when the UI language is set to Italian.

Looking forward to any other ideas or a fix from the support team.

Auth Server Separated (for Angular)**: no Hi, I have all my dates set up as DataOnly.

When I switch the UI language to Italian and try to filter by date, I get an error if the day is greater

For example: The value '31/07/2025' is not valid for PaymentDateMin.

It seems that the date is being parsed in US format (MM/DD/YYYY) instead of the correct format based

Is there a way to automatically parse date filters according to the language set in the UI?

- There is currently no official support in ABP Angular for using reference tokens with AuthService.login

- There is no configuration option to disable or override this behavior out-of-the-box. 3.

ABP.IO plans for `AuthService.login()` with Reference Tokens - There is **no built-in support** for reference

, because: * JWT validation is stateless * No DB call or introspection occurs per request So even if

the token is revoked, any service or API with the previously issued JWT still allows access until the

**Current Behavior:** * We were previously using AuthService.login() with JWT tokens, and everything

worked fine. * Recently, we switched to using Reference Tokens (opaque tokens) on the backend to support

and higher security. * Backend now returns an access_token (reference token) and refresh_token via the

* **Exception message and full stack trace**: * **Steps to reproduce the issue**:

AuthService.login() fails with Reference Token in Angular

hi You can clear the `TenantResolvers` of `AbpTenantResolveOptions` and only keep the `DomainTenantResolveContributor

` and `CurrentUserTenantResolveContributor` No need to change the account login page.

**I want to replace the existing login page. I have downloaded the `Volo.Account.Pro` module.

I will remove the tenant selection and handle tenant resolution by domain using a tenant resolver.

And how to add tenant resolver

hi devpomi What is your license type? Team or Business? Thanks.

The error in your screenshot occurs because the module name Volo.Abp.LeptonXTheme.Pro is not recognized

, 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

Double-check the module name: Volo.Abp.LeptonXTheme.Pro (for LeptonX Pro), or Volo.Abp.LeptonXTheme (

I'm trying to download the source code of the LeptonXTheme.

I've tried from ABPsuite, where the button "OK" in the modal "Download source code" is disabled.

So I tried with the ABP CLI download command suggested into the modal ( abp get-source Volo.Abp.LeptonXTheme.Pro

--version 4.2.2) but executing it into a folder in my project, I get the error you can see in the attached

named `AbpLicenseCode` with your license value in the Azure Container App configuration. 2.

Azure Portal** - Go to your Azure Container App > Settings > Environment variables. - Add: ```xml Name

This suggests that the issue is not related to the current container’s configuration or contents.

Is there anything else that could be causing this problem, possibly on the ABP license validation service

with the correct value.

Ensure that your appsettings.json or appsettings.secrets.json has "AbpLicenseCode" key with your license

appsettings.secrets.json file, and the AbpLicenseCode key is present with the correct value.

To be sure, I restarted a previously working container (which had no issues before), and now it also

gives the same license error.

This indicates that the issue is not specific to the new deployment.

creation APIs. - After the tenant is created, immediately call `CreateSubscriptionAsync` with the new

If there is any documentation I missed, please link it.

with `PaymentType.Subscription` - Associates the tenant ID and edition ID in `ExtraProperties`

tenant ID) - **Tenant**: Specific tenant context (with tenant ID) **Solutions for Tenant-Only Access

context with a small middleware (redirect when `CurrentTenant.IsAvailable` is false) or a policy. -

(editionId, CurrentTenant.GetId());`, it seems to imply that the tenant already needs to be a tenant

I need my users to be able to sign up for an edition at the same time they sign up to be a tenant (it

doesn't make sense to have a tenant without an edition assigned to them).

Related to 1, I don't have a use for the "host" section of the app, and really only need the app accessible

Is there a way to "disable" the host (non-tenant) functionality and just force the user to login or register

The `UI.Lookup` feature is designed for single-value selection (e.g., a single Guid or string), not for

This is not directly supported by the module extension system, but you can implement it by creating a

The extension system does not provide a built-in multi-select UI or automatic serialization/deserialization

- This approach is robust and aligns with best practices for relational data. 2.

- The module extension system will not provide a multi-select UI or manage the string format for

As a fallback, we would be happy with support for a multi-select UI that stores the selected values as

Questions: Is it possible to achieve this via the current module extension mechanism?

If not, is there a supported way to either: Enable a multi-select lookup with comma-separated value

Or bind the extension to a many-to-many relationship using a join table?

Any guidance or examples would be greatly appreciated. Thanks again for the fantastic framework!

especially in modular or tiered solutions.

or failing to load the file input.

patch release. - No manual workaround is required; after updating to the fixed version, the problem

generated `.razor.js` file to the main Blazor project's `wwwroot` or ensure it is included as a static

Could you please confirm the version in which this fix will be included, and proceed with refunding the

Provide us with the following info: 🧐 Hint: If you are using the ABP Studio, you can see all the information

* **Distributed Event Bus**: rabbitmq * **Use Local References**: No * **Optional Modules**: * GDPR

access\_token is active

", Request id "0HNE3U3HKH7SD:00000035": the application completed without reading the entire request

template that is creating faulty application.

and compatible with System.Text.Json (the default serializer in ABP).

with open references or circular dependencies.

name of the field over which aggregation is performed. /// public string Member => this.function.SourceField

public string Caption => this.function.Caption; /// Gets the name of the function. /// The name

depth or can't serilize the result .

end of the JSON payload.

There is an open JSON object or array that should be closed.

. ---> System.Text.Json.JsonReaderException: Expected depth to be zero at the end of the JSON payload

There is an open JSON object or array that should be closed.

[image.png](/QA/files/3a1b1fea4ce566b11f169566171d528e.png) This is the request { "skip": 0,

Fix JSON Deserialization Error: "Expected depth to be zero at the end of the JSON payload" in ABP HTTP

- In ABP microservice or separated AuthServer scenarios, the [Authorize] attribute with a permission

The permission is not defined or registered in the API module (the PermissionDefinitionProvider is missing

Claims mapping or claim type configuration is inconsistent between AuthServer and the API module. 3

permission is visible in the Permission Management UI for the API service

$"Authorization Header: {authorizationHeader}" : "Authorization Header is missing or empty.")

granted and on correct tenant, does not get Authorized and I get a 403 error.

The app has a separated Auth Server, when using the `[Authorize("Permission.View")]` in the Auth Server

module on the same user, the API returns a 200 response.

the correct tenant context is used.

I have gone through ABP example projects to see if there are any differences, but could not find any.

rfn) when running ABP Studio or ABP Suite is most likely a false positive.

ABP Studio and ABP Suite are official tools distributed by the ABP team, and there are no known reports

This is a common issue with .NET tools and other CLI utilities. - To ensure safety: 1.

is especially with the result from VirusTotal: https://www.virustotal.com/gui/file/d190aea0d64b850d5dfe19b2786283ab7f7dc4b72e4f6c5e0d3ae58b51c5ac48

Moving to 9.2.2 is a little better, but still confusing why there are positives on the list: https://

Studio v1.0.2 (current) My guess here is either a bad/hijacked dependency got pulled in or it's a

- Instead, use integration services or events to communicate between modules. 2.

Extending the Customer List with Extra Info: - The recommended approach is to use a ViewModel composition

pattern at the application or UI layer, not at the entity or DbContext level

- Compose the final DTO (e.g., CustomerWithExtraInfoDto) by merging the base customer data with the

allow them to return a filtered set of customer IDs, and intersect these with the base list

This is a theoretical question.

The Customers module is supposed to work independently of the others, with its own UI, entities, DTOs

information, I need a way to perform a join along with the customer query or use the customer query

in the other modules to perform the join there (making it 3 queries).

with entities or logic from subsequently developed modules, while still being extensible enough to have

This is the only way to enable lazy loading proxies for those entities. 3.

However, this is not recommended for commercial modules or if you want to keep receiving updates. ##

); ``` Or with EF Core's `Include`: ```csharp var gdprRequest = await dbContext.GdprRequests .Include

Use eager or explicit loading as an alternative, or request the module authors to update their code.

hi What is your abp version? I will make all properties `virtual` in the next patch version.

when i start the project it throws error because 'GdprRequest.Infos' is not virtual.

**I need all collections be virtual in the modules.

Thank you** Provide us with the following info: - **Template**: app - **Created ABP Studio Version

Libs**: Yes - **Database Provider**: ef - **Database Management System**: sqlserver - **Separate Tenant

When start application it throws GdprRequest.Infos is not virtual.

- If many users log in or register at the same time, concurrent updates to the same user or token records

When an update occurs, the `ConcurrencyStamp` is checked.

If it has changed since the entity was loaded, a concurrency exception is thrown.

- For background or batch operations, consider implementing a retry policy with a backoff. 4.

- This is not related to notification services or `HandleNonSuccessAndDebuggerNotification` directly;

Hi there, I got hundreds of this exception when we got users login / register simultaneously.

BTW: I don't have plan to upgrade the 8.2.2 to v9 yet.

I don't remember I have any notification services that hook with HandleNonSuccessAndDebuggerNotification