Graphql-playground: Error when opening Playground: Cannot read property 'get' of undefined

[eole1712]

This issue pertains to the following package(s):

• [ ] GraphQL Playground - Electron App
• [ ] GraphQL Playground HTML
• [x] GraphQL Playground
• [ ] GraphQL Playground Express Middleware
• [ ] GraphQL Playground Hapi Middleware
• [ ] GraphQL Playground Koa Middleware
• [ ] GraphQL Playground Lambda Middleware

What OS and OS version are you experiencing the issue(s) on?

MacOS Mojave (10.14.5)

What version of graphql-playground(-electron/-middleware) are you experiencing the issue(s) on?

graphql-playground-electron-1.8.10.dmg

What is the expected behavior?

Show the main screen where we create a new Workspace

What is the actual behavior?

Shows nothing (black screen)

What steps may we take to reproduce the behavior?

I just open Playground since few days and have this issue.
I tried to

brew cask uninstall graphql-playground
then
brew cask install graphql-playground
but doesn't help.

I have always two errors when I open DevTools console :

app.52474f40a85b8b9c3215.js:85086 TypeError: Cannot read property 'get' of undefined
    at app.52474f40a85b8b9c3215.js:13764
    at app.52474f40a85b8b9c3215.js:11560
    at app.52474f40a85b8b9c3215.js:11520
    at app.52474f40a85b8b9c3215.js:11574
    at app.52474f40a85b8b9c3215.js:11520
    at app.52474f40a85b8b9c3215.js:11570
    at Function.mapToProps (app.52474f40a85b8b9c3215.js:11520)
    at mapToPropsProxy (app.52474f40a85b8b9c3215.js:12913)
    at Function.detectFactoryAndVerify (app.52474f40a85b8b9c3215.js:12922)
    at mapToPropsProxy (app.52474f40a85b8b9c3215.js:12913)
    at handleFirstCall (app.52474f40a85b8b9c3215.js:13044)
    at pureFinalPropsSelector (app.52474f40a85b8b9c3215.js:13085)
    at Object.runComponentSelector [as run] (app.52474f40a85b8b9c3215.js:11903)
    at Connect.initSelector (app.52474f40a85b8b9c3215.js:12062)
    at new Connect (app.52474f40a85b8b9c3215.js:12000)
    at Wf (app.52474f40a85b8b9c3215.js:85043)
Hg @ app.52474f40a85b8b9c3215.js:85086
app.52474f40a85b8b9c3215.js:85126 Uncaught TypeError: Cannot read property 'get' of undefined
    at app.52474f40a85b8b9c3215.js:13764
    at app.52474f40a85b8b9c3215.js:11560
    at app.52474f40a85b8b9c3215.js:11520
    at app.52474f40a85b8b9c3215.js:11574
    at app.52474f40a85b8b9c3215.js:11520
    at app.52474f40a85b8b9c3215.js:11570
    at Function.mapToProps (app.52474f40a85b8b9c3215.js:11520)
    at mapToPropsProxy (app.52474f40a85b8b9c3215.js:12913)
    at Function.detectFactoryAndVerify (app.52474f40a85b8b9c3215.js:12922)
    at mapToPropsProxy (app.52474f40a85b8b9c3215.js:12913)
    at handleFirstCall (app.52474f40a85b8b9c3215.js:13044)
    at pureFinalPropsSelector (app.52474f40a85b8b9c3215.js:13085)
    at Object.runComponentSelector [as run] (app.52474f40a85b8b9c3215.js:11903)
    at Connect.initSelector (app.52474f40a85b8b9c3215.js:12062)
    at new Connect (app.52474f40a85b8b9c3215.js:12000)
    at Wf (app.52474f40a85b8b9c3215.js:85043)

_Please provide a gif or image of the issue for a quicker response/fix._

[yoshiakis]

Would you try clearing local storage for the application?

[yoshiakis]

@eole1712 I'm going to close this issue. Please let me know when you are still having the same issue if you've done clearing local storage.

[Fabiomad85]

I have the same problem Prisma 1 on app.prisma.io