Nx: ng g app... Cannot read property 'toString' of null

[jwright04]

I don't seem to see this exact issue here, but I create my angular project, then run

ng g app dashboard --routing -p=app --style=scss --d

I get the following prompts

? In which directory should the application be generated? apps
? Which Unit Test Runner would you like to use for the application? Karma [ https://karma-runner.github.io ]
? Which E2E Test Runner would you like to use for the application? Protractor [ https://www.protractortest.org ]
? Which tags would you like to add to the application? (used for linting) test

I end up with the error

Cannot read property 'toString' of null

I'm obviously doing something wrong, any suggestions?

Angular CLI: 7.3.3
Node: 9.9.0
OS: darwin x64
Angular: 7.2.6

@angular-devkit/architect         0.13.3
@angular-devkit/build-angular     0.13.3
@angular-devkit/build-optimizer   0.13.3
@angular-devkit/build-webpack     0.13.3
@angular-devkit/core              7.3.3
@angular-devkit/schematics        7.3.3
@angular/cli                      7.3.3
@ngtools/webpack                  7.3.3
@schematics/angular               7.3.3
@schematics/update                0.13.3
rxjs                              6.3.3
typescript                        3.2.4
webpack                           4.29.0

"@nrwl/nx": "7.6.0",
"@nrwl/schematics": "7.6.0",

• [ x] I am running the latest version
• [ x] I checked the documentation and found no answer
• [ x] I checked to make sure that this issue has not already been filed (similar issues have but not exact)
• [ x] I'm reporting the issue to the correct repository (not related to Angular, AngularCLI or any dependency) i'm running the ng command using the nrwl schematics

Expected Behavior

Please describe the behavior you are expecting
Create a new app called "dashboard" in "apps" directory

Current Behavior

What is the current behavior?
Cannot read property 'toString' of null

Failure Information (for bugs)

Please help provide information about the failure if this is a bug. If it is not a bug, please remove the rest of this template.

[ghost]

I'm seeing this issue as well. Haven't used nx before, just trying to follow https://nrwl.io/nx/guide-nx-workspace as written.

$ ng --version
Angular CLI: 7.3.0
Node: 10.15.1
OS: win32 x64
Angular: 7.2.6
...
typescript 3.2.2

@nrwl/[email protected]

$ create-nx-workspace workspace
(completes fine)
$ cd workspace
$ ng g app example
? In which directory should the application be generated? example
? Would you like to add Angular routing? No
? Which Unit Test Runner would you like to use for the application? Jest [ https://jestjs.io ]
? Which E2E Test Runner would you like to use for the application? Cypress [ https://www.cypress.io ]
? Which tags would you like to add to the application? (used for linting)
Path "/apps/example/example-e2e/tsconfig.e2e.json" does not exist.

$ ng g app example
? In which directory should the application be generated? example
? Would you like to add Angular routing? No
? Which Unit Test Runner would you like to use for the application? Karma [ https://karma-runner.github.io ]
? Which E2E Test Runner would you like to use for the application? Protractor [ https://www.protractortest.org ]
? Which tags would you like to add to the application? (used for linting) test
Cannot read property 'toString' of null

[stekosto]

Exact same issue here.

Angular CLI: 7.3.3
Node: 10.10.0
OS: win32 x64
Angular: 7.2.6

Package Version

@angular-devkit/architect 0.13.3
@angular-devkit/build-angular 0.13.3
@angular-devkit/build-optimizer 0.13.3
@angular-devkit/build-webpack 0.13.3
@angular-devkit/core 7.3.3
@angular-devkit/schematics 7.3.3
@angular/cli 7.3.3
@ngtools/webpack 7.3.3
@schematics/angular 7.3.3
@schematics/update 0.13.3
rxjs 6.4.0
typescript 3.2.4
webpack 4.29.0

$ ng g app demo
? In which directory should the application be generated? demo
? Would you like to add Angular routing? Yes
? Which Unit Test Runner would you like to use for the application? Karma [ https://karma-runner.github.io ]
? Which E2E Test Runner would you like to use for the application? Protractor [ https://www.protractortest.org ]
? Which tags would you like to add to the application? (used for linting) lintTag
Cannot read property 'toString' of null

[zmszaman]

It looks like a bug in newest version of schematic. It works when you downgrade it to previous version:
npm install -g @angular/cli @nrwl/schematics@~7.5.2

[Muromi-Rikka]

+1

[isaacplmann]

You can also solve this issue by using @nrwl/[email protected] and @angular/[email protected].

Another problem caused by @nrwl/[email protected] and @angular/[email protected] is that you can't generate a lib.

ng generate @nrwl/schematics:library mylib

Path "/libs/mylib/src/lib/mylib.service.ts" does not exist.

[FrozenPandaz]

@isaacplmann is right, @angular/[email protected] has a breaking change with how applications and libraries are generated.

✅ A fix has been released in @nrwl/[email protected] which fixes the issue for new workspaces.
✅ Update: @nrwl/[email protected] has been released resolving the issue for updating workspaces.
⌛️ We are also working with the Angular CLI on the breaking change.

Sorry for the inconvenience. 😞

[FrozenPandaz]

I'm going to mark this as resolved form our end. We've rolled out @nrwl/[email protected] which should not have this issue anymore. Let us know if you see anymore issues.

[gund]

Issue still persists with @nrwl/[email protected]:
Cannot read property 'toString' of null

Also I'm getting different error messages if I pick different E2E frameworks:

• When I choose Protractor: Cannot read property 'toString' of null
• When I choose Cypress: Path "/apps/myapp-e2e/tsconfig.e2e.json" does not exist.

_Edit:_ Generation of libs also broken with exact error message posted by @isaacplmann.

Looks like a regression to me...

Angular CLI: 7.3.3
Node: 11.9.0
OS: darwin x64
Angular: 7.2.6
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.13.3
@angular-devkit/build-angular      0.13.3
@angular-devkit/build-ng-packagr   0.13.3
@angular-devkit/build-optimizer    0.13.3
@angular-devkit/build-webpack      0.13.3
@angular-devkit/core               7.3.3
@angular-devkit/schematics         7.3.3
@angular/cdk                       7.3.3
@angular/cli                       7.3.3
@ngtools/json-schema               1.1.0
@ngtools/webpack                   7.3.3
@schematics/angular                7.3.3
@schematics/update                 0.13.3
ng-packagr                         4.7.1
rxjs                               6.4.0
typescript                         3.2.4
webpack                            4.29.0

[kklimczak]

I noticed the same problem during generating library with config:

Angular CLI: 7.2.4
Node: 8.11.3
OS: linux x64
Angular: 7.2.7
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.11.4
@angular-devkit/build-angular     0.11.4
@angular-devkit/build-optimizer   0.11.4
@angular-devkit/build-webpack     0.11.4
@angular-devkit/core              7.2.4
@angular-devkit/schematics        7.2.4
@angular/cdk                      7.3.3
@angular/cli                      7.2.4
@angular/material                 7.3.3
@ngtools/webpack                  7.1.4
@schematics/angular               7.3.3
@schematics/update                0.12.4
rxjs                              6.3.3
typescript                        3.2.4
webpack                           4.23.1

I tried 7.5.1, 7.6.1, 7.6.2 versions of @nrwl/schematics.

[spidermon]

In our project this issue was reproducible with latest angular cli and nx. Cause of issue was @angular/pwa package or some of 14 derived dependencies. I didn't dig deep enough but workaround is to delete @angular/pwa. Angular CLI with nx working after that as expected.

[mohyeid]

I tried all combinations above, and none of them works. Always failing at the e2e step with above errors.

[agusdutra]

I was having this issue with ng generate app , without any extra config.

After updating schematics and angular cli it worked.

@nrwl/[email protected]
@angular/[email protected]

[gund]

Can confirm in my project CLI works again after upgrading angular and NX libs.