[Windows] Incorrect `mongod` binary path

Freshly installed on a new machine Windows10 x64

Autostarting MongoDB instance...
  Mongo[50146] Starting MongoDB instance with following options: {"port":50146,"dbName":"f63e96d0-2244-497d-a043-f608688a503d","uri":"mongodb://localhost:50146/f63e96d0-2244-497d-a043-f608688a503d","storageEngine":"ephemeralForTest","dbPath":"C:\\Users\\Username\\AppData\\Local\\Temp\\mongo-mem-6080BA3QCuF1h8UT"} +0ms
Downloading MongoDB: https://downloads.mongodb.org/win32/mongodb-win32-x86_64-3.4.4.zip
  Mongo[50146] renamed C:\Users\Username\.mongodb-binaries\mongodb-win32-x86_64-3.4.4.zip.downloading to C:\Users\Username\.mongodb-binaries\mongodb-win32-x86_64-3.4.4.zip +10s
  Mongo[50146] getDownloadMD5Hash content: 024a46524c856429d0fd9de0c7d04c5f  mongodb-win32-x86_64-3.4.4.zip
  Mongo[50146]  +557ms
  Mongo[50146] getDownloadMD5Hash extracted signature: 024a46524c856429d0fd9de0c7d04c5f +1ms
  Mongo[50146] extract(): C:\Users\Username\.mongodb-binaries\3.4.4 +581ms
(node:6080) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: MongoBinaryDownload: missing mongod binary in C:\Users\Username\.mongodb-binaries\mongodb-win32-x86_64-3.4.4.zip
(node:6080) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): Error: MongoBinaryDownload: missing mongod binary in C:\Users\Username\.mongodb-binaries\mongodb-win32-x86_64-3.4.4.zip

[cmosgh]

would be my first. I should try tho 😃

[ozanmuyes]

For what is worth set the binary.systemBinary option (as listed at here) to point to the correct path on the filesystem (where npm postinstall actually downloads the binary). For me this systemBinary is “X:\Project\Root\node_modules\mongodb-memory-server\node_modules\.cache\mongodb-memory-server\mongodb-binaries\x.y.z\mongod.exe” (note the double slash on Windows). Hope this helps, because even version 3.0.0 of this package wasn’t working for me.