Build issue

[jzhenxing]

Follow this step will get a building issue.

1. remove the package-lock.json
2. npm i
3. npm start

No overload matches this call.
Overload 1 of 3, '(callbackfn: (previousValue: string, currentValue: string, currentIndex: number, array: string[]) => string, initialValue: string): string', gave the following error.
Argument of type '(prev: { [propertyName: string]: { description: string; type: string; }; }, propertyName: string) => { [x: string]: { description: string; type: string; } | { description: string | undefined; type: GraphQLType; }; }' is not assignable to parameter of type '(previousValue: string, currentValue: string, currentIndex: number, array: string[]) => string'.
Types of parameters 'prev' and 'previousValue' are incompatible.
Type 'string' is not assignable to type '{ [propertyName: string]: { description: string; type: string; }; }'.
Overload 2 of 3, '(callbackfn: (previousValue: { [propertyName: string]: { description: string; type: string; }; }, currentValue: string, currentIndex: number, array: string[]) => { [propertyName: string]: { description: string; type: string; }; }, initialValue: { ...; }): { ...; }', gave the following error.
Argument of type '(prev: { [propertyName: string]: { description: string; type: string; }; }, propertyName: string) => { [x: string]: { description: string; type: string; } | { description: string | undefined; type: GraphQLType; }; }' is not assignable to parameter of type '(previousValue: { [propertyName: string]: { description: string; type: string; }; }, currentValue: string, currentIndex: number, array: string[]) => { [propertyName: string]: { description: string; type: string; }; }'.
Type '{ [x: string]: { description: string; type: string; } | { description: string | undefined; type: GraphQLType; }; }' is not assignable to type '{ [propertyName: string]: { description: string; type: string; }; }'.
Index signatures are incompatible.
Type '{ description: string; type: string; } | { description: string | undefined; type: GraphQLType; }' is not assignable to type '{ description: string; type: string; }'.
Type '{ description: string | undefined; type: GraphQLType; }' is not assignable to type '{ description: string; type: string; }'.
Types of property 'description' are incompatible.
Type 'string | undefined' is not assignable to type 'string'.
Type 'undefined' is not assignable to type 'string'.ts(2769)