Migrate from Ionic 3 to Ionic 4. ERROR in ../node_modules/@angular/core/src/facade/async.js. Module not found

anton_klochko · October 9, 2018, 8:26am

Hi all ! Has anyone faced with such ERROR ? I am trying to migrate from Ionic 3 to Ionic 4.

ERROR in …/node_modules/@angular/core/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\core\src\facade’
ERROR in …/node_modules/@angular/forms/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\forms\src\facade’
ERROR in …/node_modules/@angular/http/src/backends/jsonp_backend.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\http\src\backends’
ERROR in …/node_modules/@angular/http/src/backends/xhr_backend.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\http\src\backends’
ERROR in …/node_modules/@angular/core/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Subject’ in ‘D:\tmp\ionic2\node_mod
ules@angular\core\src\facade’
ERROR in …/node_modules/@angular/forms/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Subject’ in ‘D:\tmp\ionic2\node_mod
ules@angular\forms\src\facade’
ERROR in …/node_modules/@angular/forms/src/model.js
Module not found: Error: Can’t resolve ‘rxjs/observable/fromPromise’ in ‘D:\tmp
ionic2\node_modules@angular\forms\src’
ERROR in …/node_modules/@angular/forms/src/validators.js
Module not found: Error: Can’t resolve ‘rxjs/operator/toPromise’ in ‘D:\tmp\ioni
c2\node_modules@angular\forms\src’
ERROR in …/node_modules/@angular/core/src/util/lang.js
Module not found: Error: Can’t resolve ‘rxjs/symbol/observable’ in ‘D:\tmp\ionic
2\node_modules@angular\core\src\util’

WARNING in …/node_modules/@angular/core/src/linker/system_js_ng_module_factory_
loader.js
71:15-36 Critical dependency: the request of a dependency is an expression

WARNING in …/node_modules/@angular/core/src/linker/system_js_ng_module_factory_
loader.js
87:15-102 Critical dependency: the request of a dependency is an expression

WARNING in Circular dependency detected:
src\app\pages\ModelItemPage\ModelItemPage.ts → src\app\pages\ModelSearchPage\Mo
delSearchPage.ts → src\app\pages\ModelItemPage\ModelItemPage.ts

WARNING in Circular dependency detected:
src\app\pages\ModelSearchPage\ModelSearchPage.ts → src\app\pages\ModelItemPage
ModelItemPage.ts → src\app\pages\ModelSearchPage\ModelSearchPage.ts

WARNING in Circular dependency detected:
src\app\pages\SubscriptionButtonsPage\SubscriptionButtonsPage.ts → src\app\page
s\models\models.ts → src\app\pages\ModelItemPage\ModelItemPage.ts → src\app\pa
ges\sn-result\sn-result.ts → src\app\services\AppProvider.ts → src\app\pages\a
ccount\account.ts → src\app\pages\products\products.ts → src\app\pages\Subscri
ptionButtonsPage\SubscriptionButtonsPage.ts

WARNING in Circular dependency detected:
src\app\pages\account\account.ts → src\app\pages\products\products.ts → src\ap
p\pages\SubscriptionButtonsPage\SubscriptionButtonsPage.ts → src\app\pages\mode
ls\models.ts → src\app\pages\ModelItemPage\ModelItemPage.ts → src\app\pages\sn
-result\sn-result.ts → src\app\services\AppProvider.ts → src\app\pages\account
\account.ts

WARNING in Circular dependency detected:
src\app\pages\deactivate-device\deactivate-device.ts → src\app\pages\products\p
roducts.ts → src\app\pages\SubscriptionButtonsPage\SubscriptionButtonsPage.ts -

src\app\pages\models\models.ts → src\app\pages\ModelItemPage\ModelItemPage.ts
→ src\app\pages\sn-result\sn-result.ts → src\app\services\AppProvider.ts → s
rc\app\pages\deactivate-device\deactivate-device.ts

WARNING in Circular dependency detected:
src\app\pages\empty-subscriptions\empty-subscriptions.ts → src\app\pages\produc
ts\products.ts → src\app\pages\SubscriptionButtonsPage\SubscriptionButtonsPage.
ts → src\app\pages\models\models.ts → src\app\pages\ModelItemPage\ModelItemPag
e.ts → src\app\pages\sn-result\sn-result.ts → src\app\services\AppProvider.ts
→ src\app\pages\account\account.ts → src\app\pages\loginPage\loginPage.ts → s
rc\app\pages\empty-subscriptions\empty-subscriptions.ts

WARNING in Circular dependency detected:
src\app\pages\greeting\greeting.ts → src\app\pages\products\products.ts → src
app\pages\SubscriptionButtonsPage\SubscriptionButtonsPage.ts → src\app\pages\mo
dels\models.ts → src\app\pages\ModelItemPage\ModelItemPage.ts → src\app\pages
sn-result\sn-result.ts → src\app\services\AppProvider.ts → src\app\pages\accou
nt\account.ts → src\app\pages\loginPage\loginPage.ts → src\app\pages\greeting
greeting.ts

WARNING in Circular dependency detected:
src\app\pages\loginPage\loginPage.ts → src\app\pages\greeting\greeting.ts → sr
c\app\pages\products\products.ts → src\app\pages\SubscriptionButtonsPage\Subscr
iptionButtonsPage.ts → src\app\pages\models\models.ts → src\app\pages\ModelIte
mPage\ModelItemPage.ts → src\app\pages\sn-result\sn-result.ts → src\app\servic
es\AppProvider.ts → src\app\pages\account\account.ts → src\app\pages\loginPage
\loginPage.ts

WARNING in Circular dependency detected:
src\app\pages\models\models.ts → src\app\pages\ModelItemPage\ModelItemPage.ts -

src\app\pages\sn-result\sn-result.ts → src\app\services\AppProvider.ts → src
\app\pages\account\account.ts → src\app\pages\products\products.ts → src\app\p
ages\SubscriptionButtonsPage\SubscriptionButtonsPage.ts → src\app\pages\models
models.ts

WARNING in Circular dependency detected:
src\app\pages\products\products.ts → src\app\pages\SubscriptionButtonsPage\Subs
criptionButtonsPage.ts → src\app\pages\models\models.ts → src\app\pages\ModelI
temPage\ModelItemPage.ts → src\app\pages\sn-result\sn-result.ts → src\app\serv
ices\AppProvider.ts → src\app\pages\account\account.ts → src\app\pages\product
s\products.ts

WARNING in Circular dependency detected:
src\app\pages\sn-result\sn-result.ts → src\app\services\AppProvider.ts → src\a
pp\pages\account\account.ts → src\app\pages\products\products.ts → src\app\pag
es\SubscriptionButtonsPage\SubscriptionButtonsPage.ts → src\app\pages\models\mo
dels.ts → src\app\pages\ModelItemPage\ModelItemPage.ts → src\app\pages\sn-resu
lt\sn-result.ts

WARNING in Circular dependency detected:
src\app\pages\update-information\update-information.ts → src\app\pages\ModelIte
mPage\ModelItemPage.ts → src\app\pages\sn-result\sn-result.ts → src\app\servic
es\AppProvider.ts → src\app\pages\account\account.ts → src\app\pages\products
products.ts → src\app\pages\SubscriptionButtonsPage\SubscriptionButtonsPage.ts
→ src\app\pages\models\models.ts → src\app\pages\update-information\update-inf
ormation.ts

WARNING in Circular dependency detected:
src\app\services\AppProvider.ts → src\app\pages\account\account.ts → src\app\p
ages\products\products.ts → src\app\pages\SubscriptionButtonsPage\SubscriptionB
uttonsPage.ts → src\app\pages\models\models.ts → src\app\pages\ModelItemPage\M
odelItemPage.ts → src\app\pages\sn-result\sn-result.ts → src\app\services\AppP
rovider.ts
[ERROR] An error occurred while running subprocess ng.
    ng run app:ionic-cordova-build --platform=android exited with exit code

    1.

    Re-running this command with the --verbose flag may provide more
    information.

anton_klochko · October 9, 2018, 9:35am

I install new project but can not find in my node_modules folder facade or backends … what i did wrong ?

Ionic info:

Ionic:

ionic (Ionic CLI) : 4.2.1 (C:\Users\anton\AppData\Roaming\npm\nod
e_modules\ionic)
Ionic Framework : @ionic/angular 4.0.0-beta.12
@angular-devkit/build-angular : 0.7.5
@angular-devkit/schematics : 0.7.5
@angular/cli : 6.1.5
@ionic/angular-toolkit : not installed

Cordova:

cordova (Cordova CLI) : 7.1.0
Cordova Platforms : not available
Cordova Plugins : not available

System:

(C:\Users\anton\AppData\Local\Android\sdk)
NodeJS : v8.12.0 (C:\Program Files\nodejs\node.exe)
npm : 6.4.1
OS : Windows 7