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I have just installed mongoDb in my macOs Sierra version 10.12.6 with command brew install mongodb-community@4.4 and start the service using command brew services start mongodb-community@4.4.

I got message "Successfully started mongodb-community (label: homebrew.mxcl.mongodb-commu", after which I run the command mongod and I got error message:

Macs-MacBook-Pro:~ mac$ mongod
dyld: Symbol not found: _syslog$DARWIN_EXTSN
  Referenced from: /usr/local/bin/mongod (which was built for Mac OS X 10.13)
  Expected in: /usr/lib/libSystem.B.dylib
 in /usr/local/bin/mongod
Abort trap: 6

I thought it's happening because of older version of my macOs so, after this I have install and tried with the following but got same error

brew install mongodb-community@4.4
brew install mongodb-community@3.4 and
brew install mongodb-community@3.2

but got same error message:

Macs-MacBook-Pro:~ mac$ mongod
dyld: Symbol not found: _syslog$DARWIN_EXTSN
  Referenced from: /usr/local/bin/mongod (which was built for Mac OS X 10.13)
  Expected in: /usr/lib/libSystem.B.dylib
 in /usr/local/bin/mongod
Abort trap: 6

What can I try to overcome this?

halfer
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Aslam Ansari
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2 Answers2

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Check Mongodb macOs installation instructions, it stated that MongoDB 4.4 Community Edition supports macOS 10.13 or later and this was also stated in the error message you got. I would recommend you install version 4.2

Balogun Ridwan Ridbay
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I had the same error running on macOs 10.12.6 (Sierra), seemed like a problem with older macOS version. Had to remove mongodb via this post, then tried installing mongoDB via .tgz tarball. That didn't work, same error. Double checked on supported platforms on mongodb's website, seems like 4.2 is still okay. Finally installed and ran in terminal:

brew install mongodb-community@4.2

Now it works. I don't know why removing and reinstalling 4.4 then 4.2 worked but it does now.

PocketPiggy
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