If you need to further customize or override module behavior, you can also use the extensibility and customization mechanisms provided by ABP, such as service replacement or module extension points.
Sources:
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The Volo.Saas.Tenants.TenantManager.CreateAsync(string name, Nullable<Guid> editionId) method in ABP Commercial uses internal validation logic to ensure tenant names are valid and unique. The core of this validation is performed in the ValidateNameAsync method.
Here are the key validations performed by ValidateNameAsync:
BusinessException is thrown.TenantManager or repository, you may have additional custom rules (e.g., removing whitespace, regex checks).If any of these validations fail, a Volo.Abp.BusinessException is thrown, which is what you are seeing in your stack trace.
Example of a custom name validation (from community guidance):
public override async Task<Tenant> FindByNameAsync(string name, bool includeDetails = true, CancellationToken cancellationToken = default)
{
var tenants = await (await GetDbSetAsync())
.IncludeDetails(includeDetails)
.OrderBy(t => t.Id).ToListAsync();
return tenants
.FirstOrDefault(t => (t.Name == name || TestUrlNamingConvention(t.Name, name)));
}
private bool TestUrlNamingConvention(string tenantName, string inputName)
{
var i = string.Concat(inputName.Where(c => !char.IsWhiteSpace(c))).ToLowerInvariant();
var t = string.Concat(tenantName.Where(c => !char.IsWhiteSpace(c))).ToLowerInvariant();
return i == t;
}
This shows how you can extend or customize the validation logic.
Summary:
TenantManager or repository.Sources:
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The error "There was no runtime pack for Microsoft.AspNetCore.App available for the specified RuntimeIdentifier 'browser-wasm'" typically occurs when trying to use server-side or ASP.NET Core-specific packages in a Blazor WebAssembly (WASM) project. Blazor WASM runs on the client and does not support the full ASP.NET Core runtime, so references to Microsoft.AspNetCore.App or similar server-side packages should be avoided in the WASM project.
To resolve this:
If you are using a custom RuntimeIdentifier or have edited the project file, ensure that the Blazor WASM project targets net8.0 (or the correct .NET version) and does not set a RuntimeIdentifier like browser-wasm unless required by the template.
For a correct setup, see the official ABP Blazor WASM + ASP.NET Core Hosted integration steps:
Microsoft.AspNetCore.Components.WebAssembly.Server package only to the Host project.app.UseBlazorFrameworkFiles() and app.UseStaticFiles() in the Host's OnApplicationInitialization.If you have a private repo and have invited a collaborator, you can continue troubleshooting with them, but the above steps should resolve the runtime pack error.
Sources:
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To use an external OIDC provider (like Okta or Auth0) as the main login for your ABP application, you need to configure external authentication and ensure that users authenticated via the OIDC provider are mapped or created in the ABP user store. This is necessary for ABP to recognize the user as logged in, manage permissions, and perform auditing.
Here’s how you can achieve this:
Configure OIDC Authentication
In your ABP application's startup (e.g., HttpApi.Host or .Web project), configure the OIDC provider using AddOpenIdConnect:
context.Services.AddAuthentication()
.AddOpenIdConnect("OidcProvider", "OIDC Provider", options =>
{
options.Authority = "<OIDC_Authority_URL>";
options.ClientId = "<ClientId>";
options.ClientSecret = "<ClientSecret>";
options.ResponseType = OpenIdConnectResponseType.CodeIdToken;
options.CallbackPath = "/signin-oidc";
options.RequireHttpsMetadata = true;
options.SaveTokens = true;
options.GetClaimsFromUserInfoEndpoint = true;
options.Scope.Add("email");
options.ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "sub");
});
User Creation/Mapping After External Login
ABP’s Account module handles external logins by default. When a user logs in via an external provider, ABP will attempt to find a user with the external login info. If not found, it will create a new user in the ABP user store using the claims (like email) from the OIDC provider.
email claim. ABP uses this to create the user.options.Scope.Add("email"); to your OIDC configuration.Troubleshooting
email claim is present in the OIDC response.System.ArgumentNullException: Value cannot be null. (Parameter 'userName'), it usually means the email claim is missing.Customizing User Creation
If you need to customize how users are created or mapped, you can override the external login logic in the Account module by handling the OnExternalLoginCallbackAsync event.
References and Examples
These guides are applicable to any OIDC provider, not just Azure AD, and the same principles apply for Okta or Auth0.
Sources:
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In ABP microservice solutions, if user data requests return Host-level data while other microservices correctly filter by tenant, the most common cause is that the tenant resolution is not working for the Identity (user) service. This is especially likely when using NGINX as a reverse proxy, because NGINX by default strips or blocks HTTP headers with underscores (such as the __tenant header used by ABP for tenant resolution).
When the __tenant header is missing or not forwarded, the Identity service cannot resolve the current tenant and defaults to Host context, exposing Host-level users.
Solution Steps:
NGINX Configuration:
underscores_in_headers on;
ignore_invalid_headers on; (the default), as this will drop such headers.Check Tenant Resolver Configuration:
Configure<AbpTenantResolveOptions>(options =>
{
options.AddDomainTenantResolver("{0}.yourdomain.com");
options.AddHeaderTenantResolver();
options.AddCookieTenantResolver();
options.AddQueryStringTenantResolver();
});
Verify Angular App Sends __tenant Header:
Restart NGINX and Services:
Summary:
The issue is almost always due to NGINX blocking the __tenant header, causing tenant resolution to fail and Host data to be shown. Allowing underscores in headers resolves this and ensures correct tenant isolation.
Sources:
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Based on your detailed analysis and the available verified sources, here are the key points and recommendations regarding cold start performance issues in ABP AppServices:
ABP performs several post-processing steps after your business logic completes, including:
Additionally, the first call may trigger:
Check Distributed Cache (Redis) Performance:
Warm-Up Critical Endpoints:
Review and Optimize ABP Features:
Profile and Log ABP Middleware:
Compare with Direct Controller:
Update ABP and Dependencies:
These sources confirm that cold start delays are typically due to cache initialization, permission store population, or distributed cache latency, and are not inherent to every request. Optimizing your cache setup and pre-warming endpoints are the most effective mitigations.
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The error message "The data you have submitted has already been changed by another user. Discard your changes and try again" is related to ABP's concurrency check system, which uses the ConcurrencyStamp property to prevent conflicting updates to the same data by multiple processes or users.
In ABP v9.1.0, as in previous versions, if you update an entity that implements IHasConcurrencyStamp (such as most aggregate roots), ABP will compare the ConcurrencyStamp value from your request with the current value in the database. If they do not match, an AbpDbConcurrencyException is thrown, resulting in the error you see.
This often happens in background workers or distributed systems if:
Solution Steps:
Example:
public async Task UpdateEntityAsync(UpdateEntityDto input)
{
var entity = await _repository.GetAsync(input.Id);
// Map other properties
entity.ConcurrencyStamp = input.ConcurrencyStamp; // Ensure this is set
await _repository.UpdateAsync(entity);
}
If you are using CrudAppService or ICrudAppService, ensure your DTOs implement IHasConcurrencyStamp and the property is included in your update requests.
Reference Implementation:
See the official ABP concurrency check guide for a full example and best practices:
This guide provides a step-by-step walkthrough for implementing and troubleshooting concurrency checks in ABP-based applications.
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In ABP Angular applications, the ability to revert to the original user after impersonation is provided by the "Back to my account" action, which is typically available in the user menu or toolbar. If you have customized the UI by moving the logout option and hiding the right sidebar, you may have inadvertently removed or hidden the "Back to my account" button.
To restore this functionality, ensure that the impersonation UI component (usually a button or menu item for "Back to my account") is still present and visible in your custom layout. This button is distinct from the logout button and must be explicitly included in your menu or toolbar.
You can refer to the official documentation for impersonation in ABP and see how the "Back to my account" action is implemented:
If you are using a custom menu, ensure you add a menu item that calls the abp.account.impersonation.backToImpersonator() method or navigates to the appropriate endpoint to revert impersonation. Hiding the right sidebar or moving logout does not automatically move this action; it must be handled in your custom UI.
Review your custom menu code and compare it with the default ABP Angular template to ensure the "Back to my account" option is available to users during impersonation.
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The error "There is no version found with given version: 6.0.2" indicates that the ABP CLI cannot find the required module template for version 6.0.2. This usually happens if the specific version's templates are not available on the ABP template source.
To resolve this issue, follow these steps:
Make sure you are using the correct ABP CLI version that matches your target ABP Framework version (6.0.2). You can update or install a specific version of the CLI with:
dotnet tool update -g Volo.Abp.Cli --version 6.0.2
If the problem persists, try omitting the --version parameter. The CLI will use the solution's version or the latest compatible template:
abp add-module EmailArchiving --new --add-to-solution-file
If you must specify the version, ensure that the version exists in the ABP template repository. Sometimes, not all patch versions have published templates. Try using a more general version (e.g., 6.0.0) or the latest available 6.x version.
If you still encounter issues, you can manually create a module using the CLI and then adjust the dependencies in the .csproj files to match your solution's version.
For more details, see the official documentation:
If the template for 6.0.2 is not available, use the closest available version and align your dependencies manually.
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There is no official, definitive guide from ABP Framework documentation on hosting an ABP module inside an Azure Durable Function. The ABP documentation and community articles do not provide a step-by-step or supported approach for integrating ABP modules (with features like authorization, tenant resolution, or application module referencing) directly within Azure Durable Functions.
If you need to use ABP features such as authorization and multi-tenancy in Azure Functions, you would need to manually bootstrap the ABP application services and resolve dependencies, but this is not covered or supported by official documentation as of version 9.1.
If you require these features, consider exposing your ABP application logic via HTTP APIs and calling them from your Azure Functions, rather than trying to host ABP modules directly inside the function runtime.
Sources:
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