Error: Cannot find module 'exists-sync'

osx: El Captain,
node: v 6.2.2,
npm: v 3.10.3

Angular cli created new project well, but when I using ' ng server ' to start the server following error comes out. Anybody knows how to solve?

Error: Cannot find module 'exists-sync'
at Function.Module._resolveFilename (module.js:440:15)
at Function.Module._load (module.js:388:25)
at Module.require (module.js:468:17)
at require (internal/module.js:20:19)
at Object. (/Users/Mars/Google Drive/Front-End/Project1/hello/node_modules/angular-cli/node_modules/ember-cli/lib/models/project.js:11:26)
at Module._compile (module.js:541:32)
at Object.Module._extensions..js (module.js:550:10)
at Module.load (module.js:458:32)
at tryModuleLoad (module.js:417:12)
at Function.Module._load (module.js:409:3)

Running this command fixed the issue for me. It will install the missing module 'exists-sync':
npm install --save exists-sync

@swfree

@swfree
Thx! But after installing the module it stiil crashed when I try to start the server. This time the error message looks like

(node:7087) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.
Livereload server on http://localhost:49152
Serving on http://localhost:4200/
The Broccoli Plugin: [BroccoliTypeScriptCompiler] failed with:
Error: Typescript found the following errors:
.../Project1/hello/tmp/broccoli_type_script_compiler-input_base_path-dvBqPqwe.tmp/0/src/typings.d.ts (5, 1): File '.../Project1/hello/tmp/broccoli_type_script_compiler-input_base_path-dvBqPqwe.tmp/0/typings/browser.d.ts' not found.

@Marswang92
This seems to be an error related to how typings was configured. Maybe it can be solved by creating a browser.d.ts file in your typings folder. I'm not too sure though, so you might be able to find a solution by looking at responses to some other similar issues:
typings/typings#151
angular/angular#5807
microsoft/TypeScript#7369

@Marswang92
I also received the same error when running 'ng serve' after creation of a new project with angular-cli. To solve this, I ran the "npm install" command from within the new project's folder. I was then able to run "ng serve" successfully.

I had similar issues while running:
npm version 2.14.12
node version 4.3.0

After updating to node version 6.2.2 and npm 3.9.5 all is working OK.

Maybe worth giving that a shot?

Duplicate of #1186. This should be closed.

Run npm install in the angular-cli folder globally and then run ng -v to check if working. After you have created a new project with the ng new command and ng serve should not work until you go into node_modules and angular-cli in your root project and npm install again.

fix(npm): update to npm 3.10.2

fix(npm): update to npm 3.10.2 (#1250)

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swfree commented on Jun 24, 2016

MarsZ42 commented on Jun 24, 2016

swfree commented on Jun 24, 2016

hcsadm commented on Jun 24, 2016

simonstewart commented on Jun 26, 2016

Splaktar commented on Jun 26, 2016

JoshWilliams92 commented on Jun 27, 2016

angular-automatic-lock-bot commented on Sep 5, 2019

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