I encountered an issue where Nest is unable to resolve dependencies. The error message from the logger reads as follows:
[Nest] 39472 - 17.08.2023, 05:45:34 ERROR [ExceptionHandler] Nest can't resolve dependencies of the UserTransactionRepository (?). Please ensure that the argument UserTransactionRepository at index [0] is available in the WalletModule context.
Potential solutions:
- Is WalletModule a valid NestJS module?
- If UserTransactionRepository is a provider, is it part of the current WalletModule?
- If UserTransactionRepository is exported from a separate @Module, is that module imported within WalletModule?
@Module({
imports: [ /* the Module containing UserTransactionRepository */ ]
})
Error: Nest can't resolve dependencies of the UserTransactionRepository (?).
Please ensure that the argument UserTransactionRepository at index [0] is available in the WalletModule context.
Potential solutions:
- Is WalletModule a valid NestJS module?
- If UserTransactionRepository is a provider, is it part of the current WalletModule?
- If UserTransactionRepository is exported from a separate @Module, is that module imported within WalletModule?
@Module({
imports: [ /* the Module containing UserTransactionRepository */ ]
})
[...]
In my folder structure, there are two modules imported into the app.module.
From the error analysis, it seems that Nest is unable to resolve the dependency in the UserTransactionRepository class. If I remove the dependency from the constructor and run the functionality without it, everything works fine. Here's the code for the transaction repository:
import { Injectable } from '@nestjs/common';
// remaining code skipped for brevity...
export class UserTransactionRepository {
// remaining code skipped for brevity...
}
The modules are structured as follows:
// UserModule content...
// WalletModule content...
// AppModule content...
How do I go about resolving this error?
After my investigation, the issue seems to be with the transaction repository file. However, I'm unsure what's causing the problem since there's only one dependency per model needed to work with in the repository.
Transaction model details:
import {
// remaining code skipped for brevity...
}