[DMP 2026] Bug: `AuthService` Not Found Due to Permission Errors (EPERM)

[divysaxena24]

Description

Multiple components such as Login, App-Header, and Reset-Password are unable to locate AuthService from:

src/app/app-modules/core/services

Even though the AuthService file exists and is properly exported, the build process fails to resolve it.

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Error Observed

• Build tool throws EPERM (Permission Denied) errors
• Errors occur while accessing the Babel cache inside:

.angular/cache

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Root Cause

• The issue appears to be related to file permission problems in the Angular cache directory.
• Due to this, the build system cannot properly read/cache AuthService.
• Potential secondary cause: circular dependencies involving AuthService.

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Expected Behavior

• Components should successfully import and use AuthService without build errors.

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Actual Behavior

• Build fails with module resolution errors.
• AuthService is reported as missing despite being present and exported.

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Suggested Fixes

1. Clear Angular Cache

rm -rf .angular/cache

2. Fix Permissions

chmod -R 755 .angular

3. Restart Development Server

ng serve

4. Check for Circular Dependencies

• Inspect imports involving AuthService
• Ensure no cyclic dependency chains exist

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Environment

• Angular Version:
• Node Version:
• OS:

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Additional Notes

• Issue may intermittently appear depending on cache state.
• Clearing cache typically resolves it temporarily.