Angular-cli: ng generate: "input.mergeMap is not a function"

[evolkmann]

Versions

Angular CLI: 1.6.0
Node: 8.9.1
OS: win32 x64
Angular: 5.1.0
... animations, common, compiler, compiler-cli, core, forms
... http, platform-browser, platform-browser-dynamic
... platform-server, router, upgrade

@angular/cli: 1.6.0
@angular/flex-layout: 2.0.0-rc.1
@angular-devkit/build-optimizer: 0.0.36
@angular-devkit/core: 0.0.22
@angular-devkit/schematics: 0.0.42
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.9.0
@schematics/angular: 0.1.11
@schematics/schematics: 0.0.11
typescript: 2.4.2
webpack: 3.10.0

Repro steps

• Install Angular and CLI as described above
• Try ng generate component test

Observed behavior

• ng generate ... crashes with the error message input.mergeMap is not a function.
• The error happens for the generate command in general, not just for ng g c for example
• No files are created
• The complete output is:

C:\Users\Enzo\WebstormProjects\test-project>ng g c test
input.mergeMap is not a function
TypeError: input.mergeMap is not a function
    at Object.callRule (C:\Users\Enzo\WebstormProjects\test-project\node_modules\@angular-devkit\schematics\src\rules\call.js:78:18)
    at SchematicImpl.call (C:\Users\Enzo\WebstormProjects\test-project\node_modules\@angular-devkit\schematics\src\engine\schematic.js:35:23)
    at Promise (C:\Users\Enzo\WebstormProjects\test-project\node_modules\@angular\cli\tasks\schematic-run.js:73:23)
    at new Promise (<anonymous>)
    at Class.run (C:\Users\Enzo\WebstormProjects\test-project\node_modules\@angular\cli\tasks\schematic-run.js:72:16)
    at Class.run (C:\Users\Enzo\WebstormProjects\test-project\node_modules\@angular\cli\commands\generate.js:152:33)
    at resolve (C:\Users\Enzo\WebstormProjects\test-project\node_modules\@angular\cli\ember-cli\lib\models\command.js:261:20)
    at new Promise (<anonymous>)
    at Class.validateAndRun (C:\Users\Enzo\WebstormProjects\test-projectnode_modules\@angular\cli\ember-cli\lib\models\command.js:240:12)
    at Promise.resolve.then.then (C:\Users\Enzo\WebstormProjects\test-projectnode_modules\@angular\cli\ember-cli\lib\cli\cli.js:140:24)

Desired behavior

• The ng generate command should generate files and adjust app.module.ts as usual

Additional information

• Opened a new issue as described in #8782

[Brocco]

Can you please post the results of running:

npm ls rxjs

Also, could you post the repository to github and share?

[neo-clon]

I have the same error :(

input.mergeMap is not a function TypeError: input.mergeMap is not a function at Object.callRule (D:\Source\Repos\Trade\ibelectron\node_modules\@angular-devkit\schematics\src\rules\call.js:78:18) at SchematicImpl.call (D:\Source\Repos\Trade\ibelectron\node_modules\@angular-devkit\schematics\src\engine\schematic.js:35:23) at Promise (D:\Source\Repos\Trade\ibelectron\node_modules\@angular\cli\tasks\schematic-run.js:73:23) at new Promise (<anonymous>) at Class.run (D:\Source\Repos\Trade\ibelectron\node_modules\@angular\cli\tasks\schematic-run.js:72:16) at Class.run (D:\Source\Repos\Trade\ibelectron\node_modules\@angular\cli\commands\generate.js:161:33) at resolve (D:\Source\Repos\Trade\ibelectron\node_modules\@angular\cli\ember-cli\lib\models\command.js:261:20) at new Promise (<anonymous>) at Class.validateAndRun (D:\Source\Repos\Trade\ibelectron\node_modules\@angular\cli\ember-cli\lib\models\command.js:240:12) at Promise.resolve.then.then (D:\Source\Repos\Trade\ibelectron\node_modules\@angular\cli\ember-cli\lib\cli\cli.js:140:24)

+-- @angular/[email protected]
| +-- @angular-devkit/[email protected]
| | `-- [email protected]
| `-- [email protected]
`-- [email protected]

[mikenauman]

I was having the same error. This was the result from npm ls rxjs:

├─┬ @angular/[email protected]
│ ├─┬ UNMET PEER DEPENDENCY @angular-devkit/[email protected]
│ │ ├── UNMET PEER DEPENDENCY @angular-devkit/[email protected]
│ │ └── [email protected]
│ └── [email protected]
├── UNMET PEER DEPENDENCY @angular/[email protected]
├── UNMET PEER DEPENDENCY @angular/[email protected]
└── [email protected]

I ran:
npm update

And now it works.

[neo-clon]

Thanks! I ran yarn upgrade and now works :)

[evolkmann]

Output of npm ls rxjs:

[email protected] C:\Users\Enzo\WebstormProjects\test-project
+-- @angular/[email protected]
| `-- [email protected]
`-- [email protected]

As suggested, I ran npm update, but this had no effect for me.

[evolkmann]

@Brocco I can not publish the original repo, but I created a new project and copied the exact dependecies:

https://github.com/evolkmann/test-ng-generate

In this particular setup, the error happens and can be reproduced.

ng -v prints:

Angular CLI: 1.6.0
Node: 8.9.1
OS: win32 x64
Angular: 5.1.0
... animations, common, compiler, compiler-cli, core, forms
... http, platform-browser, platform-browser-dynamic
... platform-server, router, upgrade

@angular/cli: 1.6.0
@angular/flex-layout: 2.0.0-rc.1
@angular-devkit/build-optimizer: 0.0.36
@angular-devkit/core: 0.0.22
@angular-devkit/schematics: 0.0.42
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.9.0
@schematics/angular: 0.1.11
@schematics/schematics: 0.0.11
typescript: 2.4.2
webpack: 3.10.0

[numzbk]

yarn upgrade it work for me

[solkaz]

After running yarn upgrade and then trying to generate a module, I get:

yarn run v1.3.2
$ ng g m MyModule --dry-run
Error: You provided an invalid object where a stream was expected. You can provide an Observable, Promise, Array, or Iterable.
You provided an invalid object where a stream was expected. You can provide an Observable, Promise, Array, or Iterable.
error Command failed with exit code 1.

Running ng --version:

    _                      _                 ____ _     ___
   / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
  / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
 / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
/_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
               |___/

Angular CLI: 1.6.3
Node: 8.9.0
OS: darwin x64
Angular: 5.2.0
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

@angular/cli: 1.6.3
@angular/flex-layout: 2.0.0-beta.12
@angular-devkit/build-optimizer: 0.0.37
@angular-devkit/core: 0.0.24
@angular-devkit/schematics: 0.0.44
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.9.3
@schematics/angular: 0.1.12
typescript: 2.5.3
webpack: 3.10.0

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