android studio 3.1 cannot find device only in the dialog





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Today I got a problem .There is neither usb device nor virtual device in the dialog.
But I can find device with commond.
Maybe there is something wrong with Android Studio.
How can I fix the problem?



enter image description hereenter image description here






android-studio adb







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    0















    Today I got a problem .There is neither usb device nor virtual device in the dialog.
    But I can find device with commond.
    Maybe there is something wrong with Android Studio.
    How can I fix the problem?



    enter image description hereenter image description here






    android-studio adb







    share|improve this question

























      0












      0








      0








      Today I got a problem .There is neither usb device nor virtual device in the dialog.
      But I can find device with commond.
      Maybe there is something wrong with Android Studio.
      How can I fix the problem?



      enter image description hereenter image description here






      android-studio adb







      share|improve this question














      Today I got a problem .There is neither usb device nor virtual device in the dialog.
      But I can find device with commond.
      Maybe there is something wrong with Android Studio.
      How can I fix the problem?



      enter image description hereenter image description here






      android-studio adb




      android-studio adb






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 3 at 3:39









      chefishchefish

      2141315




      2141315
























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          After a day,I found the problem. The error is 



          WARN -            #com.android.ddmlib - Unable to open connection to: localhost/30.129.144.64:5037, due to: java.net.ConnectException: Operation timed out


          So I add localhot 127.0.0.1 to host file，and then restart AS.Everything is OK






          share|improve this answer
























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            After a day,I found the problem. The error is 



            WARN -            #com.android.ddmlib - Unable to open connection to: localhost/30.129.144.64:5037, due to: java.net.ConnectException: Operation timed out


            So I add localhot 127.0.0.1 to host file，and then restart AS.Everything is OK






            share|improve this answer




























              0














              After a day,I found the problem. The error is 



              WARN -            #com.android.ddmlib - Unable to open connection to: localhost/30.129.144.64:5037, due to: java.net.ConnectException: Operation timed out


              So I add localhot 127.0.0.1 to host file，and then restart AS.Everything is OK






              share|improve this answer


























                0












                0








                0







                After a day,I found the problem. The error is 



                WARN -            #com.android.ddmlib - Unable to open connection to: localhost/30.129.144.64:5037, due to: java.net.ConnectException: Operation timed out


                So I add localhot 127.0.0.1 to host file，and then restart AS.Everything is OK






                share|improve this answer













                After a day,I found the problem. The error is 



                WARN -            #com.android.ddmlib - Unable to open connection to: localhost/30.129.144.64:5037, due to: java.net.ConnectException: Operation timed out


                So I add localhot 127.0.0.1 to host file，and then restart AS.Everything is OK







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jan 3 at 9:07









                chefishchefish

                2141315




                2141315
































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