The error System.IO.FileNotFoundException: Could not load file or assembly 'Volo.Abp.BackgroundWorkers.Hangfire' indicates that the Hangfire dashboard is trying to load a background worker type from the assembly Volo.Abp.BackgroundWorkers.Hangfire, but this assembly is missing from your application.
This typically happens if you previously used the Volo.Abp.BackgroundWorkers.Hangfire package, registered background workers with it, and then removed the package or related code, but there are still jobs in the Hangfire database referencing types from that assembly.
How to resolve:
dotnet add package Volo.Abp.BackgroundWorkers.Hangfire
Clean Up Old Jobs (If You No Longer Use That Worker):
[HangFire].[Job], [HangFire].[State], etc.) in your database that reference the missing type.Prevent Future Issues:
Summary:
Either restore the missing assembly or clean up the orphaned jobs in your Hangfire database to resolve the dashboard error.
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Yes, ABP Framework supports building solutions that target multiple platforms (web, mobile, and desktop) from a single code base by leveraging its modular architecture and solution templates.
When you generate a new solution using the ABP CLI or ABP Suite, you can select options to include:
The recommended approach is to use the "Layered" solution template, which allows you to include a mobile application (MAUI or React Native) fully integrated with your backend and other ABP modules. The solution structure will typically include:
You can generate such a solution using the ABP CLI:
abp new MySolution -t app-pro
During the creation process, you can select to include MAUI (for mobile/desktop) and web UIs.
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In ABP Suite 9.3.x, the Angular UI code generation system was updated to support Angular's new standalone component architecture. This change is non-breaking for existing module-based Angular projects, but it affects how UI code is generated for new entities.
If your Angular project was created with ABP Suite 9.3.x, it is likely using the new standalone structure. The code generation templates and routing logic have changed to support both module-based and standalone approaches. However, if your project or Suite configuration is not fully aligned with the new structure, UI code generation may not occur as expected.
This issue has been reported by other users as well. The most common causes and solutions are:
Check Angular Project Structure
ABP Suite Compatibility
angular.json, or not using the new standalone structure), UI code will not be generated.Known Regression
Workarounds
Downgrading
Reporting
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The "Checking pre-requirements" task in ABP Studio is stuck because some required dependencies (such as Volo.Abp.Studio.Cli, dotnet-ef, node, wg, mkcert) are not installed or are not being installed successfully. This prevents ABP Studio from working properly, including project creation and ABP Suite operations.
To resolve this, follow these steps:
dotnet tool install --global Volo.Abp.Studio.Cli
dotnet tool install --global dotnet-ef
- Install Node.js: Download and install from https://nodejs.org/
- Install mkcert: Follow instructions at https://github.com/FiloSottile/mkcert
- Install wg (WireGuard): https://www.wireguard.com/install/
If you still encounter issues, check your network/proxy settings, as ABP Studio may not be able to download dependencies due to firewall or proxy restrictions.
For more details, see the official installation guide:
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When you change a property type (e.g., from DateTime to Enum) in an entity generated by ABP Suite, the old property may persist or reappear after code regeneration if you do not fully remove or update all related code and migration files.
To resolve this and ensure the new data type is applied:
dotnet ef migrations add UpdatedProcessStatusType
dotnet ef database update
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The issue you are experiencing is due to a missing [Fact] attribute on the unit test method, which prevents the test from being executed. After adding the [Fact] attribute, the test runs but fails when calling the Create method of IdentityUserAppService with PhoneNumberConfirmed = true and an empty PhoneNumber.
This behavior is expected: in ABP Identity Pro 9.3.2, confirming a phone number when the phone number is empty is not a valid scenario. The implementation of the Create method should not allow PhoneNumberConfirmed to be set to true if PhoneNumber is empty. The test is likely intended to verify that the system correctly rejects this invalid input.
Solution:
[Fact]
public async Task Create_PhoneNumberConfirmed_With_Empty_PhoneNumber()
{
// Arrange
var input = new IdentityUserCreateDto
{
UserName = Guid.NewGuid().ToString(),
Email = CreateRandomEmail(),
PhoneNumber = "",
PhoneNumberConfirmed = true,
Password = "123qwE4r*"
};
// Act & Assert
await Assert.ThrowsAsync<AbpValidationException>(async () =>
{
await _userAppService.CreateAsync(input);
});
}
This will ensure the test passes only if the system correctly prevents confirming an empty phone number.
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For license renewal issues, you should contact ABP support directly through your support portal or by email. If you are within your license period and facing technical problems with renewal, the support team can assist you promptly.
For discount requests, especially as a not-for-profit organization, you should reach out to ABP via their official contact channels. You can use the information on the pricing page or email info@abp.io to explain your situation and request a special offer or discount.
If you need to request a cancellation or refund within the eligible period, you can also email info@abp.io as per official guidance.
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To address the issues with the Linked Accounts modal in ABP 9.2.2 Blazor Web App:
Long Loading Time:
Name Field Out of Bound:
text-overflow: ellipsis, overflow: hidden, and white-space: nowrap.Example of overriding and applying CSS:
@attribute [ExposeServices(typeof(LinkedAccountsModal))]
@attribute [Dependency(ReplaceServices = true)]
@inherits LinkedAccountsModal
<style>
.linked-accounts-table .user-name-cell {
max-width: 220px;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
</style>
<!-- In your table column -->
<td class="user-name-cell">@context.UserName</td>
For more details on overriding ABP Blazor components, see the official documentation below.
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To localize the application name in the LeptonX Angular menu, updating the Texts->AppName value in your server-side en.json will affect the browser title, but the menu brand name is handled separately in the Angular front-end.
In LeptonX Angular, the brand name shown in the sidebar is not automatically bound to the server-side localization resource. Instead, it is set in the Angular project, typically in the environment.ts file or directly in the LeptonX theme configuration.
To override the menu brand name without modifying the entire brand component, follow these steps:
src/environments/environment.ts file.application property. For example:export const environment = {
// ... other settings
application: {
name: 'Test123' // Set your desired app name here
}
};
This will update the brand name in the LeptonX sidebar menu. If you want to support localization for the brand name, you can use Angular's i18n or ngx-translate in your custom brand component, but by default, the LeptonX theme uses the static value from the environment configuration.
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To connect your ABP Angular frontend to Azure Application Insights for telemetry, follow these best practices:
npm install @microsoft/applicationinsights-web
// app-insights.service.ts
import { Injectable } from '@angular/core';
import { ApplicationInsights } from '@microsoft/applicationinsights-web';
@Injectable({ providedIn: 'root' })
export class AppInsightsService {
appInsights: ApplicationInsights;
constructor() {
this.appInsights = new ApplicationInsights({
config: {
instrumentationKey: 'YOUR_INSTRUMENTATION_KEY'
}
});
this.appInsights.loadAppInsights();
}
logPageView(name?: string, url?: string) {
this.appInsights.trackPageView({ name, uri: url });
}
logEvent(name: string, properties?: { [key: string]: any }) {
this.appInsights.trackEvent({ name }, properties);
}
logException(exception: Error, severityLevel?: number) {
this.appInsights.trackException({ exception, severityLevel });
}
}
constructor(private appInsightsService: AppInsightsService) {}
ngOnInit() {
this.appInsightsService.logPageView('HomePage', window.location.href);
}
import { Router, NavigationEnd } from '@angular/router';
constructor(router: Router, appInsightsService: AppInsightsService) {
router.events.subscribe(event => {
if (event instanceof NavigationEnd) {
appInsightsService.logPageView(undefined, event.urlAfterRedirects);
}
});
}
Store the instrumentation key in environment files for different deployments (e.g., environment.prod.ts).
For advanced scenarios, refer to the official Application Insights JavaScript SDK documentation.
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