PuTTY Fatal Error: expected key exchange group packet from server

Hi I am using Putty to ssh to a Centos virtual machine running on virtual box. It was working without any problemn until now when it start throwing the error PuTTY Fatal Error: expected key exchange . . .

• 14
• 4
• 25726

MongoDB create unique index: E11000 duplicate key error collection dup key:{:null}

I am trying to create a unique key on a collection. It fails with the error message: > db.users.createIndex({userid:1},{unique:true}) {         "ok" : 0,     &nbsp . . .

• 2
• 0
• 11012

popover is not a function error

I have a form that use popovers..  and i have the following code inside document ready $(document).ready(function() { $('[data-toggle="popover"]').popover(); }); when the form is . . .

• 9
• 1
• 10290

NodeJS Cannot enqueue Handshake after already enqueuing a Handshake

I am trying to insert into MYSQL table some data recieved from AJAX post. Error: Cannot enqueue Handshake after already enqueuing a Handshake.     at Protocol._validateEnqueue (C:\nodejs\n . . .

• 2
• 0
• 6538

Reset all settings in Visual Studio 2015

I changed some of the options on Visual Studio 2015 IDE from Tools -> Options menu. How do i reset it all back to default without having to re-install? . . .

• 5
• 1
• 6072

Laravel Socialite Access Not Configured. Google+ API (truncated...) exception 'GuzzleHttp\Exception

Hi, I am setting up Socialite2.0 on Laravel 5.3. I registered FB and Google apps and configured services.php with credentials. Facebook login is working fine, but Google authentication fails at redi . . .

• 7
• 1
• 5663

Nodejs TypeError: express.createServer is not a function

Hi I am trying to create a nodejs server running on port 3000. I have already installed express (npm install express). I am getting the following error message TypeError: express.createServer is not . . .

• 4
• 1
• 5116

MySQL php mysqli How to use the result of SELECT COUNT(*) mysqli_query

Hi, I am using $result = mysqli_query($conn,"SELECT COUNT(*) FROM prod_catalogue WHERE cat_id ='".$catid."' " ) or die(mysqli_error($this->dblink)); How do i get the actual count from result beca . . .

• 4
• 2
• 4706

Javascript: find second largest value in an array?

Sample: myArray = [1, 2, 4, 10, 20,100] How to find second largest value without sorting the array or latering its contents? . . .

• 1
• 0
• 4657

Enable native code debugging in VS 2015

I'm using Visual Studio 2015 Community edition to create a Windows IoT background application on VB.NET. When I try to debug with watch on certain variables, i see the message "To inspect the native . . .

• 1
• 0
• 3963

Custom Facebook share button without using SDK

I had a simple custom share button using sharer.php  <a href="https://www.facebook.com/sharer/sharer.php?u=myurl.com" target="_blank">Share on FB</a> The  new guidelines say I . . .

• 2
• 2
• 2987

Laravel session expired: Properly handle TokenMismatchException

Hi, I am getting "Whoops, looks like something went wrong" page when session expired. I want to redirect user to login page instead of showing this error message. I am using Laravel 5.3. I think i ne . . .

• 1
• 0
• 2842

CentOS 7 SSH access denied message

I created a new user in Centos and when I try to ssh using that username I get access denied message.Is there anything else I need to do to allow access to this new user? . . .

• 1
• 0
• 2440

Node.js check if a path is a file or directory

How to check if a path is file or directory? . . .

• 0
• 0
• 2104

VS2015 warning - mismatch between the processor architecture of the project being built

I have a Visual Studio 2015, VB.NET solution that uses a Oracle.DataAccess.dll. I get the following warning when i try to compile the project.  There was a mismatch between the processor archite . . .

• 1
• 0
• 2038