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Apologies in advance for the messy question.

I have a problem after installing Ruby 2.4.4-x64 with MYSYS2 from the site.

Running ruby -v from the command prompt gives this error:

The application has failed to start because its side-by-side configuration is 
incorrect. Please see the application event log or use the command-line 
sxstrace.exe tool for more detail.

Here is the error from the event viewer:

Activation context generation failed for "C:\WINDOWS\system32\ruby.exe". 
Dependent Assembly ruby_builtin_dlls,type="win32",version="1.0.0.0" could not 
be found. Please use sxstrace.exe for detailed diagnosis.

Not knowing how to use sxstrace, I decided to freshly install Ruby, but the same error persists. Some forums suggested installing Microsoft Visual C++ 2008 Redistributable (x86) but this has no effect on my PC.

Info

  1. gem and irb work if called, but ruby -v does not.
  2. PC info - Lenovo ThinkPad T420, Windows 10 Home x64.
  3. Worked fine on old laptop

Path variable (if relevant):

C:\Program Files (x86)\Common Files\Oracle\Java\javapath;
C:\ProgramData\Oracle\Java\javapath;
C:\WINDOWS\system32;
C:\WINDOWS;
C:\WINDOWS\System32\Wbem;
C:\WINDOWS\System32\WindowsPowerShell\v1.0\;
C:\WINDOWS\System32\OpenSSH\;
C:\Windows;C:\Users\okait\AppData\Local\Programs\Python\Python37-32;
C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;
C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;
C:\Program Files\Java\jdk1.8.0_51\bin;
C:\Program Files\Java\jre1.8.0_51\bin;
C:\Program Files (x86)\Common Files\Oracle\Java\javapath;
C:\ProgramData\Oracle\Java\javapath;
C:\WINDOWS\system32;
C:\WINDOWS;
C:\WINDOWS\System32\Wbem;
C:\WINDOWS\System32\WindowsPowerShell\v1.0\;
C:\WINDOWS\System32\OpenSSH\;
C:\Windows;
C:\Users\okait\AppData\Local\Programs\Python\Python37-32;
C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;
C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;
C:\Program Files\Java\jdk1.8.0_51\bin;
C:\Program Files\Java\jre1.8.0_51\bin;
C:\Ruby24-x64\bin;
C:\Users\okait\AppData\Local\Microsoft\WindowsApps;

Sidenote:

(I may have had to copy ruby.exe into the system32 folder which was the only way for me to get it to respond in any way, otherwise the command prompt stalls and does not respond.)

Improve this question
5
  • pastebin.com/ZbfMC41R Commented Jul 25, 2018 at 14:47
  • have you used sxstrace? What do you see in the sxstrace.txt? Commented Aug 2, 2018 at 15:18
  • hi there, @magicandre1981 sorry for the late reply - I don't know where the log file is for Ruby, and also I don't know how to use the Sxstrace tool Commented Oct 5, 2018 at 18:06
  • my pastebin link shows how to run sxstrace Commented Oct 6, 2018 at 18:02
  • Thank you @magicandre1981, I will definitely try this when I get the time. Thanks for your patience (and perseverance) Commented Oct 12, 2018 at 8:34
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