WPF: binding to a dependency property

I am following a tutorial here. which shows a basic example on how to bind to a dependency property. <Binding ElementName="This" Path="IPAddress" UpdateSourceTrigger="PropertyChanged"> where...

Socket programming between client in C#.NET and server in C

Here I would like to ask how to create communication through socket programming between client (on Windows, using C#.NET) and server (on Ubuntu, using C). I have done successfully if the...

Arduino ethernet shield not working

I have an arduino ethernet shield and I am trying to run the "Webserver" example on it. I have the shield sitting on top of the arduino, with the arduino connected to my PC via USB and the shield...

Carrierwave / Fog not seeing Heroku environment variables

I'm upgrading from Ruby 1.9.3 / Rails 3.2.14 to Ruby 2.2.0 / Rails 4.2.1 and everything works on my development system. When pushing to Heroku, I get ArgumentError: Missing required arguments:...

Why ExecJS constantly uses 100% CPU?

I'm using Ruby 2.2.4 and Rails 4.2.5 and Capistrano to deploy, but after my latest commit suddenly server always uses 100% CPU. I used htop and saw command nodejs tmp/execjs use all the CPU. [CPU...

An error occurred while installing unf_ext (0.0.7.2), and Bundler cannot continue

I was trying to install diaspora into localhost. I removed the Gemfile.lock file and tried bundle install and am seeing this. These are the things I already...

uninitialized constant ApplicationRecord error

I am following the RailsTutorial and have been creating a Users model with appropriate attrs and validations. I've run into this error and cannot see where the problem is. The project is...

Access wordpress website from phone hosted locally through Xammp

I have a test WordPress website hosted locally by my PC. This is fine but i am now wanting to test the website on a phone and tablet (iPhone and iPad). I have looked online for all the options and...

keycloak - CODE_TO_TOKEN_ERROR after user is authenticated

I am working with the nodeJS keycloak adapter and so far have my client application redirecting to the keycloak login. When attempting to login, I get an error in the keycloak logs as...

HAProxy + Keycloak redirect issue

I have an HAProxy acting as a load balancer in front of 2 machines running Keycloak in standalone mode. Versions HAProxy version 1.6.3, released 2015/12/25 Keycloak version 2.4.0.Final HAProxy...

Rails broken - bundle not working - ovirt-engine-sdk - ERROR: Failed to build gem native extension. Cloud9 AWS

I am working through the Ruby on Rails Tutorial (Rails5) by Michael Hartl in the AWS Cloud9 environment. I'm finishing chapter 11 now. (new to programming as well) It appears I have broken...

Keycloak Redirect URI is adding port zero to the url

Encountered redirect_uri error in keycloak. Found same issue logged at JIRA KEYCLOAK-7237, just want to check any work around? Anyone can help? Thank you in advance. 2018-06-30 11:34:13,996 WARN ...

Could not load type Castle.Proxies.IReadinessProxy when running xUnit integration tests in parallel with Autofac

I am having an issue that I've been many days unable to resolve. I use xUnit with a given-then-when abstraction to make tests more readable. I am using a wrapper over EventStore and running some...

No module named 'serial'

I have a piece of Python3 code running on a Pi3B+ with Raspbian Buster that uses the serial library. I imported this library with sudo apt-get install python3-serial The Python script is placed...

no implicit conversion of Sass::Importers::Filesystem into String

I am updating my Ruby on Rails application from 4.0.1 to rails version: 5.2.3 and ruby version 2.6.5. After installing bundle, server is running properly. However, When I open page in browser, I...

Keycloak SAML IdP gives invalidFederatedIdentityActionMessage after login

I configured a SAML identity provider in keycloak by importing metadata provided by Microsoft ADFS. I could see the option of IdP on my client login page for login. After clicking on that on that...

invalid destination error in Keycloak SAML integration

We are trying to integrate KeyCloak and external IDP using SAML protocol. After the Keycloak and saml configuration, we tried to test. Keycloak is able to initiate a call to IDP and IDP is...

New-NetIPAddress not working in WIndows Powershell: Invalid parameter InterfaceAliase Local Area Network

My computer has a Windows 10 and I was following through Microsoft 98-366 Network Fundamentals book. It had me to open Windows Powershell and type New-NetIPAddress -InterfaceAlias "Local Area...

pg_restore error: function raise_err(unknown) does not exist

I run a daily backup of my database using pg_dump and pg_restore that recently stopped working after I pushed an update. I have a function validate_id that's a Case/When statement just as a quick...

Keycloak Google Identity Provider : Could not fetch attributes from userinfo endpoint

Hi i'm trying implement Google authentication in keycloak, but when i try login, throw this error. Already enabled Google+ API and the error persist. WARN [org.keycloak.events] (default task-126)...

Getting Identity provider login error when trying to authenticate user from Microsoft via keycloak

I am trying to authenticate the user from Microsoft-AD IDP using keycloak as an identity broker. Technology stack used: Frontend: React Backend: Django (python) IAM solution: Keycloak IDP:...

kube-controller-manager and kube-scheduler leaderelection lost Crashloopback

Kubernetes kube-controller-manager and kube-scheduler keeps on restarting . The below is the pod logs. ~$ kubectl logs -n kube-system kube-scheduler-node1 -p I1228 16:59:26.709076 1...

Keycloak Required actions - Terms and Conditions - issue in redirecting user back to login page (browser specific)

My Keycloak version - 9.0. App front end - Angular 8 I am enabling Terms and Conditions and also setting defaults true. I have configured the t&c page the way I wanted and it is coming up when...

Using Keycloak as a broker for Oauth 2.0 IdP (Mercado Libre)

I have been trying to configure Keycloak as a broker using Mercado Libre as Identity provider. Problem is that even if I set the endpoints suggested on their documentation (which is here)on the...

How to resolve Gemfile.lock contains merge conflicts (running `git checkout HEAD -- Gemfile.lock` does not work)

I got an error message after I ran bundle install in my ruby on rails app, the error message was: Your Gemfile.lock contains merge conflicts. Run `git checkout HEAD -- Gemfile.lock` first to get a...

Testing a web application using JMeter with keycloak authentication

I am trying to test my web application using JMeter which is protected by keycloak IDP. But when I try to login using the credentials the login fails saying "Please login from the client" and...

Error while running bundle update after doing git clone

I'm using window operating system for ruby on rails application. I just clone the git repository which is a ruby on rails application. But, when I do bundle update it shows this error libv8-node...

Build fails when deploying Rails application on Amazon Linux 2

I am migrating my existing Rails application from Amazon Linux AMI to Amazon Linux 2. I was able to upgrade my Rails linux environment to AL2 but the deployment is failing. The deployment...

System.Text.Json can't deserialize an object with an array of objects?

I have a json structure that looks like this: { "SystemType": "SingleDevice", "Devices": [ { "DeviceSettings":{ "DeviceType": "Blah", "Generates": 4, "RAdd": 10, "TAdd":...

Getting "Cannot_match_source_hash" error when trying to connect using spring boot using SAML. IDP is keycloack

Hi Have create realms and client in keycloack. Trying to connect using SAML descriptor using spring boot but getting "Cannot_match_source_hash" in keycloack. Am I doing something wrong? Do I need...