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Importing ngrx devtools to enable a debugger for chrome tools results to an error below:

ERROR TypeError: Cannot read property 'whitelist' of undefined
at isFiltered (:1:5016)
at Object.x [as send] (:1:74196)
at DevtoolsExtension.notify (store-devtools.js:210)
at ScanSubscriber.StoreDevtools.liftedAction$.pipe.Object.state [as accumulator] (store-devtools.js:649)
at ScanSubscriber._tryNext (scan.js:61)
at ScanSubscriber._next (scan.js:54)
at ScanSubscriber.Subscriber.next (Subscriber.js:54)
at WithLatestFromSubscriber._next (withLatestFrom.js:66)
at WithLatestFromSubscriber.Subscriber.next (Subscriber.js:54)
at Notification.observe (Notification.js:15)

This are my versions below of ngrx:

 "@ngrx/core": "^1.2.0",

    "@ngrx/effects": "^6.1.2",

    "@ngrx/store": "^6.1.2",

    "@ngrx/store-devtools": "^6.1.2",

and my angular and ionic

 "@angular/animations": "5.2.11",

    "@angular/common": "5.2.11",

    "@angular/compiler": "5.2.11",

    "@angular/compiler-cli": "5.2.11",

    "@angular/core": "5.2.11",

    "@angular/forms": "5.2.11",

    "@angular/http": "5.2.11",

    "@angular/platform-browser": "5.2.11",

    "@angular/platform-browser-dynamic": "5.2.11",

    "@ionic-native/core": "~4.17.0",

    "@ionic-native/splash-screen": "~4.17.0",

    "@ionic-native/status-bar": "~4.17.0",

Whenever I try to import this code below on app.module is always shows the error that I displayed on top.

 StoreDevtoolsModule.instrument({

      maxAge: 15

    }),

The error on top refers to this line of code in my console on line 210

this.extensionConnection.send(sanitizedAction, sanitizedState);

Appreciate if someone could help.
Thanks in advance.

Faced the same issue , it works fine in firefox , uninstalled redux dev tools from chrome and then started working (kind of workaround )

Looks like issue with chrome redux dev tools extension .

ref (https://stackoverflow.com/a/53513518/3742158)

Just to let you know: I had my redux devtools working fine yesterday. My project dependencies are 99% same as yours. Today I face exactly the same issue. The problem is probably with extension. Try to install another version.

There are some issues on github page about 2.16 version.
https://github.com/zalmoxisus/redux-devtools-extension/issues/589

Update your chrome extension to 2.16.2 => works again :)