Tests failing with Could not unbind serviceIdentifier

[karthiknadig]

1) Multiroot Environment Variables Provider
       "before each" hook for "Custom variables should not be undefined without an env file":
     Error: Could not unbind serviceIdentifier: Symbol(IEnvironmentActivationService)
      at Container._removeServiceFromDictionary (node_modules/inversify/lib/container/container.js:696:19)
      at Container.unbind (node_modules/inversify/lib/container/container.js:263:14)
      at Container.rebind (node_modules/inversify/lib/container/container.js:243:14)
      at ServiceManager.rebindInstance (out/client/ioc/serviceManager.js:94:28)
      at Context.<anonymous> (out/test/common/variables/envVarsProvider.multiroot.test.js:70:28)