Angular Universal Express prerender using wrong path src/src instead of just src/

Question

I am trying out the npm run prerender command in my Angular 11 project, but I get this error:

Generating browser application bundles...Error: ENOENT: no such file or directory, open '/home/xyz/edApp3b/src/src/main.server.ts'
    at Object.openSync (fs.js:476:3)
    at Object.readFileSync (fs.js:377:35)
    at NodeJSFileSystem.NodeJSReadonlyFileSystem.readFile (/home/xyz/edApp3b/node_modules/@angular/compiler-cli/src/ngtsc/file_system/src/node_js_file_system.js:98:23)
    at EsmDependencyHost.DependencyHostBase.recursivelyCollectDependencies (/home/xyz/edApp3b/node_modules/@angular/compiler-cli/ngcc/src/dependencies/dependency_host.js:81:40)
    at EsmDependencyHost.DependencyHostBase.processFile (/home/xyz/edApp3b/node_modules/@angular/compiler-cli/ngcc/src/dependencies/dependency_host.js:136:22)
    at EsmDependencyHost.DependencyHostBase.collectDependenciesInFiles (/home/xyz/edApp3b/node_modules/@angular/compiler-cli/ngcc/src/dependencies/dependency_host.js:56:26)
    at ProgramBasedEntryPointFinder.getInitialEntryPointPaths (/home/xyz/edApp3b/node_modules/@angular/compiler-cli/ngcc/src/entry_point_finder/program_based_entry_point_finder.js:49:18)
    at ProgramBasedEntryPointFinder.TracingEntryPointFinder.findEntryPoints (/home/xyz/edApp3b/node_modules/@angular/compiler-cli/ngcc/src/entry_point_finder/tracing_entry_point_finder.js:45:41)
    at /home/xyz/edApp3b/node_modules/@angular/compiler-cli/ngcc/src/execution/analyze_entry_points.js:28:41
    at new ClusterMaster (/home/xyz/edApp3b/node_modules/@angular/compiler-cli/ngcc/src/execution/cluster/master.js:45:30)

As you can see in the first line of the error output, it is looking for main.server.ts in src/src/ instead of just src/ ... why is that?, and how do I fix it?

I just installed express engine with ng add @nguniversal/express-engine, that's it. So I didn't do any of the configuration myself. I've been looking around in config files but there is no obvious values related to prerender and a path.

chrigu · Accepted Answer · 2021-03-10 08:11:34Z

4

The configuration is in tsconfig.server.json. There you can change the path to the required files (main.server.ts and server.ts are defaults). You might also need to update the path to servers.ts

  "files": [
      "main.server.ts",
      "../server.ts"
  ],

answered Mar 10, 2021 at 8:11

chrigu

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2 Comments

Jette Over a year ago

It seems that ng add @nguniversal/express-engine for angular 11 installs a tsconfig.server.json file with incorrect paths in the files section. I corrected the paths exactly as you wrote here, and it worked. Thanks! :-D

chrigu Over a year ago

Good to know. I'm stuck with v10.x and had somehow to solve it.

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