Mongo DB - data file missing error

 Solution :

create data file --> C:\\data\\db\\

Below is the complete error log

--------------------------------

C:\SW\mongodb-win32-x86_64-windows-4.4.4\bin>mongod.exe

{"t":{"$date":"2021-06-07T08:32:24.699+05:30"},"s":"I",  "c":"CONTROL",  "id":23285,   "ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}

{"t":{"$date":"2021-06-07T08:32:25.211+05:30"},"s":"W",  "c":"ASIO",     "id":22601,   "ctx":"main","msg":"No TransportLayer configured during NetworkInterface startup"}

{"t":{"$date":"2021-06-07T08:32:25.212+05:30"},"s":"I",  "c":"NETWORK",  "id":4648602, "ctx":"main","msg":"Implicit TCP FastOpen in use."}

{"t":{"$date":"2021-06-07T08:32:25.214+05:30"},"s":"I",  "c":"STORAGE",  "id":4615611, "ctx":"initandlisten","msg":"MongoDB starting","attr":{"pid":9236,"port":27017,"dbPath":"C:/data/db/","architecture":"64-bit","host":"COMPUTER"}}

{"t":{"$date":"2021-06-07T08:32:25.214+05:30"},"s":"I",  "c":"CONTROL",  "id":23398,   "ctx":"initandlisten","msg":"Target operating system minimum version","attr":{"targetMinOS":"Windows 7/Windows Server 2008 R2"}}

{"t":{"$date":"2021-06-07T08:32:25.214+05:30"},"s":"I",  "c":"CONTROL",  "id":23403,   "ctx":"initandlisten","msg":"Build Info","attr":{"buildInfo":{"version":"4.4.4","gitVersion":"8db30a63db1a9d84bdcad0c83369623f708e0397","modules":[],"allocator":"tcmalloc","environment":{"distmod":"windows","distarch":"x86_64","target_arch":"x86_64"}}}}

{"t":{"$date":"2021-06-07T08:32:25.215+05:30"},"s":"I",  "c":"CONTROL",  "id":51765,   "ctx":"initandlisten","msg":"Operating System","attr":{"os":{"name":"Microsoft Windows 10","version":"10.0 (build 19042)"}}}

{"t":{"$date":"2021-06-07T08:32:25.215+05:30"},"s":"I",  "c":"CONTROL",  "id":21951,   "ctx":"initandlisten","msg":"Options set by command line","attr":{"options":{}}}

{"t":{"$date":"2021-06-07T08:32:25.216+05:30"},"s":"E",  "c":"STORAGE",  "id":20557,   "ctx":"initandlisten","msg":"DBException in initAndListen, terminating","attr":{"error":"NonExistentPath: Data directory C:\\data\\db\\ not found. Create the missing directory or specify another path using (1) the --dbpath command line option, or (2) by adding the 'storage.dbPath' option in the configuration file."}}

{"t":{"$date":"2021-06-07T08:32:25.216+05:30"},"s":"I",  "c":"REPL",     "id":4784900, "ctx":"initandlisten","msg":"Stepping down the ReplicationCoordinator for shutdown","attr":{"waitTimeMillis":10000}}

{"t":{"$date":"2021-06-07T08:32:25.216+05:30"},"s":"I",  "c":"COMMAND",  "id":4784901, "ctx":"initandlisten","msg":"Shutting down the MirrorMaestro"}

{"t":{"$date":"2021-06-07T08:32:25.217+05:30"},"s":"I",  "c":"SHARDING", "id":4784902, "ctx":"initandlisten","msg":"Shutting down the WaitForMajorityService"}

{"t":{"$date":"2021-06-07T08:32:25.217+05:30"},"s":"I",  "c":"NETWORK",  "id":20562,   "ctx":"initandlisten","msg":"Shutdown: going to close listening sockets"}

{"t":{"$date":"2021-06-07T08:32:25.217+05:30"},"s":"I",  "c":"NETWORK",  "id":4784905, "ctx":"initandlisten","msg":"Shutting down the global connection pool"}

{"t":{"$date":"2021-06-07T08:32:25.217+05:30"},"s":"I",  "c":"STORAGE",  "id":4784906, "ctx":"initandlisten","msg":"Shutting down the FlowControlTicketholder"}

{"t":{"$date":"2021-06-07T08:32:25.218+05:30"},"s":"I",  "c":"-",        "id":20520,   "ctx":"initandlisten","msg":"Stopping further Flow Control ticket acquisitions."}

{"t":{"$date":"2021-06-07T08:32:25.219+05:30"},"s":"I",  "c":"NETWORK",  "id":4784918, "ctx":"initandlisten","msg":"Shutting down the ReplicaSetMonitor"}

{"t":{"$date":"2021-06-07T08:32:25.219+05:30"},"s":"I",  "c":"SHARDING", "id":4784921, "ctx":"initandlisten","msg":"Shutting down the MigrationUtilExecutor"}

{"t":{"$date":"2021-06-07T08:32:25.220+05:30"},"s":"I",  "c":"CONTROL",  "id":4784925, "ctx":"initandlisten","msg":"Shutting down free monitoring"}

{"t":{"$date":"2021-06-07T08:32:25.220+05:30"},"s":"I",  "c":"STORAGE",  "id":4784927, "ctx":"initandlisten","msg":"Shutting down the HealthLog"}

{"t":{"$date":"2021-06-07T08:32:25.221+05:30"},"s":"I",  "c":"STORAGE",  "id":4784929, "ctx":"initandlisten","msg":"Acquiring the global lock for shutdown"}

{"t":{"$date":"2021-06-07T08:32:25.227+05:30"},"s":"I",  "c":"-",        "id":4784931, "ctx":"initandlisten","msg":"Dropping the scope cache for shutdown"}

{"t":{"$date":"2021-06-07T08:32:25.227+05:30"},"s":"I",  "c":"FTDC",     "id":4784926, "ctx":"initandlisten","msg":"Shutting down full-time data capture"}

{"t":{"$date":"2021-06-07T08:32:25.229+05:30"},"s":"I",  "c":"CONTROL",  "id":20565,   "ctx":"initandlisten","msg":"Now exiting"}

{"t":{"$date":"2021-06-07T08:32:25.230+05:30"},"s":"I",  "c":"CONTROL",  "id":23138,   "ctx":"initandlisten","msg":"Shutting down","attr":{"exitCode":100}}