Tyedefs: 'AbstractExtendedWebDriver' incorrectly extends interface 'ExtendedWebDriver'

Bug report

• Node Version: 7.9.0
• Protractor Version: 5.1.2
• Operating System and Version Windows 10

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I recently upgrade a project from Typescript 2.3.x to 2.4.1 and now I get this error TS2430 about the typedefs in \node_modules\protractor\built\browser.d.ts

Interface ‘AbstractExtendedWebDriver’ incorrectly extends interface ‘ExtendedWebDriver’

  Types of property 'controlFlow' are incompatible.
    Type '() => promise.ControlFlow' is not assignable to type '() => promise.ControlFlow'. Two different types with this name exist, but they are unrelated.
      Type 'promise.ControlFlow' is not assignable to type 'promise.ControlFlow'. Two different types with this name exist, but they are unrelated.
        Types of property 'execute' are incompatible.
          Type '<T>(fn: () => T | promise.Promise<T>, opt_description?: string | undefined) => promise.Promise<T>' is not assignable to type '<T>(fn: () => T | promise.Promise<T>, opt_description?: string | undefined) => promise.Promise<T>'. Two different types with this name exist, but they are unrelated.
            Types of parameters 'fn' and 'fn' are incompatible.
              Type 'T | promise.Promise<T>' is not assignable to type 'T | promise.Promise<T>'. Two different types with this name exist, but they are unrelated.
                Type 'Promise<T>' is not assignable to type 'T | Promise<T>'.
                  Type 'promise.Promise<T>' is not assignable to type 'promise.Promise<T>'. Two different types with this name exist, but they are unrelated.
                    Types of property 'then' are incompatible.
                      Type '<R>(opt_callback?: ((value: T) => R | promise.IThenable<R>) | undefined, opt_errback?: ((error: a...' is not assignable to type '<R>(opt_callback?: ((value: T) => R | promise.IThenable<R>) | undefined, opt_errback?: ((error: a...'. Two different types with this name exist, but they are unrelated.
                        Types of parameters 'opt_callback' and 'opt_callback' are incompatible.
                          Type 'R | promise.IThenable<R>' is not assignable to type 'R | promise.IThenable<R>'. Two different types with this name exist, but they are unrelated.
                            Type 'IThenable<R>' is not assignable to type 'R | IThenable<R>'.
                              Type 'promise.IThenable<R>' is not assignable to type 'promise.IThenable<R>'. Two different types with this name exist, but they are unrelated.
                                Types of property 'then' are incompatible.
                                  Type '<R>(opt_callback?: ((value: R) => R | promise.IThenable<R>) | undefined, opt_errback?: ((error: a...' is not assignable to type '<R>(opt_callback?: ((value: R) => R | promise.IThenable<R>) | undefined, opt_errback?: ((error: a...'. Two different types with this name exist, but they are unrelated.
                                    Type 'Promise<R | IThenable<R>>' is not assignable to type 'Promise<R>'.
                                      Types of property 'then' are incompatible.
                                        Type '<R>(opt_callback?: ((value: R | IThenable<R>) => R | IThenable<R>) | undefined, opt_errback?: ((e...' is not assignable to type '<R>(opt_callback?: ((value: R) => R | IThenable<R>) | undefined, opt_errback?: ((error: any) => a...'.
                                          Types of parameters 'opt_callback' and 'opt_callback' are incompatible.
                                            Types of parameters 'value' and 'value' are incompatible.
                                              Type 'R | IThenable<R>' is not assignable to type 'R'.
                                                Type 'IThenable<R>' is not assignable to type 'R'.

[FiniteLooper]

It recently came to my attention that there are 2 new compiler options in TS 2.4.x

"noStrictGenericChecks": true

“Disable strict checking of generic signatures in function types.”

"skipLibCheck": true

“Skip type checking of all declaration files (*.d.ts).”

view all options here

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i think that all one would need to do is set "skipLibCheck": true and then bad typedefs won’t interfere any more

[tobiasc]

+1

Hardcoding typescript@2.3.4 “fixed” it

node@7.9.0 & node@8.1.3 protractor@5.1.2 mac@10.12.5