question-mark
Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Cannot read property 'Private' of undefined

See original GitHub issue

OS?

OSX El Capitan

Versions.

    _                      _                 ____ _     ___
   / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
  / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
 / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
/_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
               |___/
@angular/cli: 1.0.0-rc.0
node: 6.9.1
os: darwin x64
@angular/common: 4.0.0-rc.1
@angular/compiler: 4.0.0-rc.1
@angular/core: 4.0.0-rc.1
@angular/forms: 4.0.0-rc.1
@angular/http: 4.0.0-rc.1
@angular/material: 2.0.0-beta.2
@angular/platform-browser: 4.0.0-rc.1
@angular/platform-browser-dynamic: 4.0.0-rc.1
@angular/router: 4.0.0-rc.1
@angular/cli: 1.0.0-rc.0
@angular/compiler-cli: 4.0.0-rc.1

Repro steps.

ng serve

The log given by the failure.

MacBook-Pro-gkucmierz:coin-tools gkucmierz$ ng serve
Cannot read property 'Private' of undefined
TypeError: Cannot read property 'Private' of undefined
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/compiler-cli/node_modules/tsickle/build/src/tsickle.js:111:40)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/compiler-cli/node_modules/@angular/tsc-wrapped/src/main.js:11:15)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/compiler-cli/node_modules/@angular/tsc-wrapped/index.js:14:14)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/compiler-cli/src/compiler_host.js:14:21)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/compiler-cli/src/codegen.js:15:23)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/compiler-cli/index.js:15:17)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/node_modules/@ngtools/webpack/src/plugin.js:6:24)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/node_modules/@ngtools/webpack/src/index.js:6:10)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/tasks/eject.js:10:19)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/models/webpack-configs/styles.js:7:17)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/models/webpack-configs/index.js:10:10)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/models/webpack-config.js:5:27)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/tasks/serve.js:11:26)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Class.run (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/commands/serve.js:94:52)
    at Class.<anonymous> (/Users/gkucmierz/learn/coin-tools/node_modules/@angular/cli/ember-cli/lib/models/command.js:134:17)
    at process._tickCallback (internal/process/next_tick.js:103:7)

Mention any other details that might be useful.

After migration to new version 1.0.0-rc.0 I have this error while serving app: “Cannot read property ‘Private’ of undefined”

Issue Analytics

  • State:closed
  • Created 7 years ago
  • Reactions:6
  • Comments:11 (1 by maintainers)

github_iconTop GitHub Comments

14reactions
anselpeterscommented, Mar 1, 2017

upgraded my typescript using npm and that fixed this issue

6reactions
hamdigatricommented, May 21, 2017

ok i did , npm install -g typescript and it solved the problem

Read more comments on GitHub >

github_iconTop Results From Across the Web

Cannot Read Property of Undefined in JavaScript - Rollbar
TypeError : Cannot read property of undefined occurs when a property is read or a function is called on an undefined variable.
Read more >
TypeError: Cannot read properties of undefined - Stack Overflow
the function where I'm having this issue doSomething() is used as a callback. You're most likely passing the function like this: library.
Read more >
Uncaught TypeError: Cannot read property of undefined
'Undefined' is the property of the global object. If you don't assign any value to a variable is of type 'undefined'. A code...
Read more >
Cannot read properties of undefined (reading 'title') 2 - Angular
I appreciate any help, I am stuck here for two weeks… ... As usual going to need to see the code for the...
Read more >
Prevent “Cannot read property '…' of undefined” errors with ...
Every developer who did some JavaScript has got errors like “Cannot read property '…' of undefined”. There is one simple way to prevent...
Read more >

github_iconTop Related Medium Post

No results found

github_iconTroubleshoot Live Code

Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free

github_iconTop Related Reddit Thread

No results found

github_iconTop Related Hackernoon Post

No results found

github_iconTop Related Tweet

No results found

github_iconTop Related Dev.to Post

No results found

github_iconTop Related Hashnode Post

No results found