Interface 'Gulp' incorrectly extends interface 'Orchestrator'.

> ng2-smart-table-demo@ start C:\金飞的项目目录\ng2-smart-table金飞的项目目录\ng2-smart-table
> ng serve

** NG Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200 **
10% bu 10% 10% 10% bu 10% 10% 10% 10% 12% buHash: b6e3d73c3b425175deba
Time: 17078ms
chunk {0} 0.chunk.js, 0.chunk.js.map 75.8 kB {1} {2} {3} {5} [rendered]
chunk {1} 1.chunk.js, 1.chunk.js.map 9.29 kB {0} {2} {3} {5} [rendered]
chunk {2} 2.chunk.js, 2.chunk.js.map 35.7 kB {0} {1} {3} {5} [rendered]
chunk {3} 3.chunk.js, 3.chunk.js.map 4.88 kB {0} {1} {2} {5} [rendered]
chunk {4} polyfills.bundle.js, polyfills.bundle.js.map (polyfills) 157 kB {8} [initial] [rendered]
chunk {5} main.bundle.js, main.bundle.js.map (main) 197 kB {7} [initial] [rendered]
chunk {6} styles.bundle.js, styles.bundle.js.map (styles) 30.3 kB {8} [initial] [rendered]
chunk {7} vendor.bundle.js, vendor.bundle.js.map (vendor) 4.54 MB [initial] [rendered]
chunk {8} inline.bundle.js, inline.bundle.js.map (inline) 0 bytes [entry] [rendered]

ERROR in C:/金飞的项目目录/ng2-smart-table/node_modules/@types/gulp/index.d.ts (16,15)金飞的项目目录/ng2-smart-table/node_modules/@types/gulp/index.d.ts (16,15): Interface 'Gulp' incorrectly extends interface 'Orchestrator'.
Types of property 'task' are incompatible.
Type 'AddMethod' is not assignable to type '{ (name: string): Task; (name: string, fn: TaskFunc): void; (name: string, dep: string[], fn: Tas...'.
Type 'Orchestrator' is not assignable to type 'Task'.
Property 'fn' is missing in type 'Orchestrator'.
webpack: Failed to compile.