# Pastebin 7J72iTqQ IPFS data importing tests on the Browser ✗ "before all" hook TypeError: Cannot set property 'needReadable' of undefined at Transform (webpack:///./~/readable-stream/lib/_stream_transform.js?:101:36) at new FlushableStream (webpack:///./~/idb-plus-blob-store/src/index.js?:41:15) at Blobs.createWriteStream (webpack:///./~/idb-plus-blob-store/src/index.js?:133:10) at async.eachSeries (webpack:///./tests/browser.js?:41:12) at eval (webpack:///./~/async/lib/async.js?:181:20) at iterate (webpack:///./~/async/lib/async.js?:262:13) at Object.async.forEachOfSeries.async.eachOfSeries (webpack:///./~/async/lib/async.js?:281:9) at Object.async.forEachSeries.async.eachSeries (webpack:///./~/async/lib/async.js?:214:22) at Context.eval (webpack:///./tests/browser.js?:32:11) Chrome 49.0.2623 (Mac OS X 10.11.3): Executed 1 of 5 (1 FAILED) ERROR (0.028 secs / 0.021 secs)