Something is already running on port





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I am a fairly new developer and have come across a problem with ports. I am using mern stack and in my json file I have set the port to many different port numbers and it says something is running in all of them. I recently switched from google chrome to firefox and feel this could possibly be related. If I try to push yes on requesting a different port the page never loads. every time I run npm start the port is taken. Thank you










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  • 2





    It would be great if you could show your configs. See Minimal, Complete, and Verifiable example

    – cricket_007
    Nov 2 '18 at 4:19











  • Sorry for the late reply, it started working once I set a specific port. what are configs? and I will definitley check that out

    – mikey
    Nov 4 '18 at 4:33











  • Your configurations. Specifically, all you said is that you "set a port"... where did you set it?

    – cricket_007
    Nov 4 '18 at 6:09


















-1















I am a fairly new developer and have come across a problem with ports. I am using mern stack and in my json file I have set the port to many different port numbers and it says something is running in all of them. I recently switched from google chrome to firefox and feel this could possibly be related. If I try to push yes on requesting a different port the page never loads. every time I run npm start the port is taken. Thank you










share|improve this question




















  • 2





    It would be great if you could show your configs. See Minimal, Complete, and Verifiable example

    – cricket_007
    Nov 2 '18 at 4:19











  • Sorry for the late reply, it started working once I set a specific port. what are configs? and I will definitley check that out

    – mikey
    Nov 4 '18 at 4:33











  • Your configurations. Specifically, all you said is that you "set a port"... where did you set it?

    – cricket_007
    Nov 4 '18 at 6:09














-1












-1








-1


1






I am a fairly new developer and have come across a problem with ports. I am using mern stack and in my json file I have set the port to many different port numbers and it says something is running in all of them. I recently switched from google chrome to firefox and feel this could possibly be related. If I try to push yes on requesting a different port the page never loads. every time I run npm start the port is taken. Thank you










share|improve this question
















I am a fairly new developer and have come across a problem with ports. I am using mern stack and in my json file I have set the port to many different port numbers and it says something is running in all of them. I recently switched from google chrome to firefox and feel this could possibly be related. If I try to push yes on requesting a different port the page never loads. every time I run npm start the port is taken. Thank you







node.js mongodb macos express npm






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edited Nov 2 '18 at 4:17









cricket_007

84.1k1147119




84.1k1147119










asked Nov 2 '18 at 4:13









mikeymikey

1




1








  • 2





    It would be great if you could show your configs. See Minimal, Complete, and Verifiable example

    – cricket_007
    Nov 2 '18 at 4:19











  • Sorry for the late reply, it started working once I set a specific port. what are configs? and I will definitley check that out

    – mikey
    Nov 4 '18 at 4:33











  • Your configurations. Specifically, all you said is that you "set a port"... where did you set it?

    – cricket_007
    Nov 4 '18 at 6:09














  • 2





    It would be great if you could show your configs. See Minimal, Complete, and Verifiable example

    – cricket_007
    Nov 2 '18 at 4:19











  • Sorry for the late reply, it started working once I set a specific port. what are configs? and I will definitley check that out

    – mikey
    Nov 4 '18 at 4:33











  • Your configurations. Specifically, all you said is that you "set a port"... where did you set it?

    – cricket_007
    Nov 4 '18 at 6:09








2




2





It would be great if you could show your configs. See Minimal, Complete, and Verifiable example

– cricket_007
Nov 2 '18 at 4:19





It would be great if you could show your configs. See Minimal, Complete, and Verifiable example

– cricket_007
Nov 2 '18 at 4:19













Sorry for the late reply, it started working once I set a specific port. what are configs? and I will definitley check that out

– mikey
Nov 4 '18 at 4:33





Sorry for the late reply, it started working once I set a specific port. what are configs? and I will definitley check that out

– mikey
Nov 4 '18 at 4:33













Your configurations. Specifically, all you said is that you "set a port"... where did you set it?

– cricket_007
Nov 4 '18 at 6:09





Your configurations. Specifically, all you said is that you "set a port"... where did you set it?

– cricket_007
Nov 4 '18 at 6:09












2 Answers
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An easy workaround whenever you get a "port in use" message while developing node type of projects such as MERN type of stacks, the solution is to run a different port. So if you were on localhost:3000, change it to localhost:3001.






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    0














    Try stopping the running node process. Maybe a process using that port hasn't stopped.



    Use Task manager (Windows) / Activity monitor (MacOs)






    share|improve this answer
























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      2 Answers
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      An easy workaround whenever you get a "port in use" message while developing node type of projects such as MERN type of stacks, the solution is to run a different port. So if you were on localhost:3000, change it to localhost:3001.






      share|improve this answer




























        0














        An easy workaround whenever you get a "port in use" message while developing node type of projects such as MERN type of stacks, the solution is to run a different port. So if you were on localhost:3000, change it to localhost:3001.






        share|improve this answer


























          0












          0








          0







          An easy workaround whenever you get a "port in use" message while developing node type of projects such as MERN type of stacks, the solution is to run a different port. So if you were on localhost:3000, change it to localhost:3001.






          share|improve this answer













          An easy workaround whenever you get a "port in use" message while developing node type of projects such as MERN type of stacks, the solution is to run a different port. So if you were on localhost:3000, change it to localhost:3001.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 16 '18 at 12:02









          DanielDaniel

          1,82321639




          1,82321639

























              0














              Try stopping the running node process. Maybe a process using that port hasn't stopped.



              Use Task manager (Windows) / Activity monitor (MacOs)






              share|improve this answer




























                0














                Try stopping the running node process. Maybe a process using that port hasn't stopped.



                Use Task manager (Windows) / Activity monitor (MacOs)






                share|improve this answer


























                  0












                  0








                  0







                  Try stopping the running node process. Maybe a process using that port hasn't stopped.



                  Use Task manager (Windows) / Activity monitor (MacOs)






                  share|improve this answer













                  Try stopping the running node process. Maybe a process using that port hasn't stopped.



                  Use Task manager (Windows) / Activity monitor (MacOs)







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 16 '18 at 12:21









                  Rafaël MoserRafaël Moser

                  8118




                  8118






























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