Error: Module build failed (from ./node_modules/@ngtools/webpack/src/ivy/index.js): Error: Emit

Question

Build at: 2022-09-14T11:34:20.503Z - Hash: c51f599b4586fb6d - Time: 7780ms

./src/main.ts - Error: Module build failed (from ./node_modules/@ngtools/webpack/src/ivy/index.js): Error: Emit

./src/polyfills.ts - Error: Module build failed (from ./node_modules/@ngtools/webpack/src/ivy/index.js): Error: Emit

Error: Failed to initialize Angular compilation - Cannot read properties of null (reading 'fileName')

** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **

× Failed to compile.

Answer 1

Check this One, May be helpful Basic reason behind this can be... Recursive calls to some modules.

for e.g.

@NgModule({
     declarations: [],
     imports: [
        CommonModule,
        MatSliderModule,
        MaterialModule
     ],
     exports:[MatSliderModule]
    })
    export class MaterialModule { }

Here, Same MaterialModule is importing self. It increases the the call stack and results into the above mentioned error.

This is one condition. There can be other conditions.