Ruby file doesn't executes on mac OS [closed] - ruby-on-rails

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File doesn't executes with ruby filename.rb
It doesn't shows any error but the code doesn't do what is suppose to.
I have the following extensions: Ruby; Ruby On Rails and VSCode Ruby. Is there something I missing ? Follow a sample of my code.

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Compiler errors when trying to compile example sketch Azure_IoT_Central_ESP32_AzureIoTKit.ino [closed]

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I have installed Azure SDK for C in Arduino IDE 2.0.3 and getting compiler errors when trying to compile example sketch Azure_IoT_Central_ESP32_AzureIoTKit.ino.
Error is related to mbedtls/base64.h
I can't decide whether this is due to a missing library - if yes, which one exactly - or related to board type. I have a NodeMCU 1.0 board selected.
Any idea please ?

Class 'Twig_Function' not found [closed]

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i have problems on all my slim3/twig projects.
i have this error : Class 'Twig_Function' not found.
my project were working well 1 month ago.
see one example : https://github.com/felixleo22/Smash2 (sorry it's in french language)
if someone got this error and got the issue, I will be very happy
if more details are needed, i will be there to answer
Twig 3 support has been added to slimphp/Twig-View exactly one month ago in version 2.5.1.
Twig 3 has dropped all deprecated functions like Twig_Function. You should use \Twig\TwigFunction instead.

Failed to load resource:unsupported URL wkwebview-bridge://invoke [closed]

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WBWebViewConsole is not giving any logs. Earlier it worked but for some reason its not working now in swift.I think it's not compatible with swift.
For any log that's created in js giving this error
Failed to load resource:unsupported URL wkwebview-bridge://invoke
You might be overriding decidePolicyForNavigationAction in the instance of WBWKWebView
If you want to do any implementation do it in the WBWKWebView's decidePolicyForNavigationAction and handle respectively.

Xcode 6 beta - Null error [closed]

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Closed 8 years ago.
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While working with Xcode beta, I keep getting this error when trying to run the code in simulator.
After cleaning the application & running, it works fine.
However, can someone help as to why this is happening.

Working with concerns on Rails 3.2 [closed]

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Closed 9 years ago.
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Edit: I implemented this again and I am getting this error.
I am working with Concerns. I took out some code of my app/models/user.rb and placed it into app/models/concenrs/following.rb. The source codes can be found on Gist, here.
When I go to /dashboards I get this error on timeline.rb (i uploaded this file's code on Gist too).
undefined method `followed_user_ids' for #<User:0x4f6cfc8>
The error is on line 15 of timeline.rb.
The project can be found on Github.
This seems to me that it does not load the module. Any clue?
You wrote ActiveSupport:Concern instead of ActiveSupport::Concern (notice the double colon).

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