Gulp error trying to watch gibber.graphics.lib

gulp.txt

dan@batman:~/git/gibber.graphics.lib$ gulp
[19:52:44] Warning: gulp version mismatch:
[19:52:44] Global gulp is 3.9.1
[19:52:44] Local gulp is 3.8.11
[19:52:44] Using gulpfile ~/git/gibber.graphics.lib/gulpfile.js
[19:52:44] Starting 'client'...
[19:52:44] 'client' errored after 22 ms
[19:52:44] TypeError: gulp.src(...).pipe(...).pipe is not a function
    at Gulp.<anonymous> (/home/dan/git/gibber.graphics.lib/gulpfile.js:23:6)
    at module.exports (/home/dan/git/gibber.graphics.lib/node_modules/orchestrator/lib/runTask.js:34:7)
    at Gulp.Orchestrator._runTask (/home/dan/git/gibber.graphics.lib/node_modules/orchestrator/index.js:273:3)
    at Gulp.Orchestrator._runStep (/home/dan/git/gibber.graphics.lib/node_modules/orchestrator/index.js:214:10)
    at Gulp.Orchestrator.start (/home/dan/git/gibber.graphics.lib/node_modules/orchestrator/index.js:134:8)
    at /usr/local/lib/node_modules/gulp/bin/gulp.js:129:20
    at nextTickCallbackWith0Args (node.js:419:9)
    at process._tickCallback (node.js:348:13)
    at Function.Module.runMain (module.js:444:11)
    at startup (node.js:136:18)
/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:623
    var written = dest.write(chunk);
                       ^

TypeError: dest.write is not a function
    at write (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:623:24)
    at flow (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:632:7)
    at DestroyableTransform.pipeOnReadable (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:664:5)
    at emitNone (events.js:67:13)
    at DestroyableTransform.emit (events.js:166:7)
    at emitReadable_ (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:448:10)
    at emitReadable (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:444:5)
    at readableAddChunk (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:187:9)
    at DestroyableTransform.Readable.push (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:149:10)
    at DestroyableTransform.Transform.push (/home/dan/git/gibber.graphics.lib/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_transform.js:145:32)