TypeError while gulp typescript

Question

I get the following error while performing my Typescript translation:

TypeError: file.isSymbolic is not a function
    at DestroyableTransform.normalize [as _transform] (D:\project\node_modules\vinyl-fs\lib\dest\prepare.js:31:15)
    at DestroyableTransform.Transform._read (D:\project\node_modules\vinyl-fs\node_modules\readable-stream\lib\_stream_transform.js:182:10)
    at DestroyableTransform.Transform._write (D:\project\node_modules\vinyl-fs\node_modules\readable-stream\lib\_stream_transform.js:170:83)
    at doWrite (D:\project\node_modules\vinyl-fs\node_modules\readable-stream\lib\_stream_writable.js:406:64)
    at writeOrBuffer (D:\project\node_modules\vinyl-fs\node_modules\readable-stream\lib\_stream_writable.js:395:5)
    at DestroyableTransform.Writable.write (D:\project\node_modules\vinyl-fs\node_modules\readable-stream\lib\_stream_writable.js:322:11)
    at Pumpify.Duplexify._write (D:\project\node_modules\pumpify\node_modules\duplexify\index.js:201:22)
    at doWrite (D:\project\node_modules\pumpify\node_modules\readable-stream\lib\_stream_writable.js:406:64)
    at writeOrBuffer (D:\project\node_modules\pumpify\node_modules\readable-stream\lib\_stream_writable.js:395:5)
    at Pumpify.Writable.write (D:\project\node_modules\pumpify\node_modules\readable-stream\lib\_stream_writable.js:322:11)

My gulp task is as follows:

gulp.task('tsc', function () {
    let tsResult =  gulp.src(srcPaths.tsFiles)
        .pipe(tsProject()); // tsProject created previously

    return tsResult.js
       .pipe(gulp.dest(buildPath)); // -> the gulp.dest(..) command causes the error
});

package.json devDependencies (gulp only and ts dependent dependencies) looks like this:

{
  "devDependencies": {
    "gulp": "github:gulpjs/gulp#4.0",
    "gulp-sourcemaps": "^2.6.1",
    "gulp-tslint": "^8.1.2",
    "gulp-typescript": "^3.2.3",
    "tslint": "^5.8.0",
    "typescript": "^2.5.0",
  }
}

Node version: 8.9.3 and npm version: 5.6.0

Does anyone have an idea what to do?

Answer 1

From gulp repo ( issue ):

phated commented 5 hours ago

Your plugins need to be updated to use the new vinyl. The one they use to create file objects is really old.

Another solution from the same problem (it works for me):

dozer75 4 •

... #. - 6d71a65