Error: Error setting TTL index on collection : sessions

Hi, When My App Tries To Connect To The DB I Get This Error:

/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/connection/server.js:529
    throw err;
          ^
Error: Error setting TTL index on collection : sessions
at module.exports._get_collection (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/lib/connect-mongo.js:137:23)
at Db.ensureIndex (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1227:28)
at Db.indexInformation (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1371:30)
at Cursor.toArray (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:156:22)
at Cursor.nextObject.self.queryRun (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:611:39)
at Cursor.close (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:939:5)
at Cursor.nextObject.commandHandler (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:611:21)
at Db._executeQueryCommand (/Users/Ari/Dev/ArisGame/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1709:18)
at g (events.js:192:14)
at EventEmitter.emit (events.js:126:20)

I’m Sorry, This Is All I Really Know

[htxuankhoa]

Hi everyone, I tried to install traider.io in my local machine and I also met this error:

Error: Error setting TTL index on collection : sessions
...

After searched, as I know because the version of connect-mongo & mongodb is not compatible. So, in my case, I re-installed mongodb with this version & it works:

npm install mongodb@1.4.x

Hope this help for someone like me 😃

[jdesboeufs]

Hello,

You should upgrade your connect-mongo version! Le lun. 29 août 2016 à 05:07, my1GitHub [e-mail] a écrit :

Hi, everyone.this error: connect to mongo success { [MongoError: driver is incompatible with this server version] name: ‘MongoError’ }

E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\connection\base.js:242 throw message; ^ Error: Error setting TTL index on collection : sessions at E:\nodeProject\testProjectEJS\node_modules\connect-mongo\lib\connect-mongo.js:162:23 at E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\db.js:1430:36 at __executeInsertCommand (E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\db.js:1829:12) at Db._executeInsertCommand (E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\db.js:1930:5) at E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\db.js:1427:14 at E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\db.js:1560:7 at E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\cursor.js:162:16 at commandHandler (E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\cursor.js:706:16) at E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\db.js:1806:9 at Server.Base._callHandler (E:\nodeProject\testProjectEJS\node_modules\connect-mongo\node_modules\mongodb\lib\mongodb\connection\base.js:442:41)

and this is my package “body-parser”: “^1.13.2”, “connect-mongo”: “^0.4.1”, “cookie-parser”: “^1.3.5”, “debug”: “~2.2.0”, “ejs”: “~2.4.1”, “express”: “~4.13.4”, “express-session”: “^1.13.0”, “mongodb”: “^2.2.8”, “morgan”: “~1.7.0”, “serve-favicon”: “~2.3.0” How can i to sovle it?

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