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[@roelvandepaar](/creator/youtube/roelvandepaar)
"Solution for error "Error in .jcall("RJavaTools" "Ljava/lang/Object;" "invokeMethod" cl"  
[YouTube Link](https://youtube.com/watch?v=5qGskRQxohY) [@roelvandepaar](/creator/youtube/roelvandepaar) 2025-10-24T05:38Z 200K followers, XXX engagements


"Maximize the sum of GCDs (Greatest Common Divisors) of a bipartition"  
[YouTube Link](https://youtube.com/watch?v=EMvuhNR_lE4) [@roelvandepaar](/creator/youtube/roelvandepaar) 2025-10-25T05:36Z 200K followers, XXX engagements


"Use jQuery to find the previous sibling element (3 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=hZLR2f2euwg) [@RoelVandePaar](/creator/youtube/RoelVandePaar) 2025-10-20T21:02Z 200K followers, XXX engagements


"My API Key is undefined even though it's in an .env file and a global var (4 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=tCm3jxym1FM) [@RoelVandePaar](/creator/youtube/RoelVandePaar) 2025-10-23T20:55Z 200K followers, XXX engagements


"Unix & Linux: Applying "iconv" to all PHP files in all subdirectories"  
[YouTube Link](https://youtube.com/watch?v=iG3Umw02CM8) [@roelvandepaar](/creator/youtube/roelvandepaar) 2020-11-17T00:31Z 200K followers, XX engagements


"iconv on cygwin saves the accents (2 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=qotyS8AnR8o) [@roelvandepaar](/creator/youtube/roelvandepaar) 2020-09-12T00:24Z 200K followers, XX engagements


"Rufus can't see my Kali .ISO (2 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=XVW5C4wDOM0) [@roelvandepaar](/creator/youtube/roelvandepaar) 2021-07-27T18:22Z 200K followers, XX engagements


"OpenGL shader language; how to specify precision for vec4"  
[YouTube Link](https://youtube.com/watch?v=vOnCjGvXtcI) [@roelvandepaar](/creator/youtube/roelvandepaar) 2025-10-22T20:41Z 200K followers, XXX engagements


"'number' only refers to a type but is being used as a value here.ts(2693) (2 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=3Jw5j44PC2w) [@roelvandepaar](/creator/youtube/roelvandepaar) 2025-10-23T09:00Z 200K followers, XXX engagements


"Carthage on macOS XXXXX Catalina (3 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=vz1qybgVS7U) [@roelvandepaar](/creator/youtube/roelvandepaar) 2025-10-24T17:15Z 200K followers, XXX engagements


"GIS: Converting personal geodatabase .mdb file to .gdb (3 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=0b5vLRRsrg8) [@roelvandepaar](/creator/youtube/roelvandepaar) 2021-11-26T16:36Z 200K followers, XXX engagements


"Is it possible to get "NT AUTHORITYNETWORK SERVICE" user independent of language (2 Solutions)"  
[YouTube Link](https://youtube.com/watch?v=0drvbvKwiDY) [@roelvandepaar](/creator/youtube/roelvandepaar) 2025-10-22T10:30Z 200K followers, XXX engagements


"Spring DTO validation using ConstraintValidator"  
[YouTube Link](https://youtube.com/watch?v=9W1voADKFSw) [@roelvandepaar](/creator/youtube/roelvandepaar) 2025-10-21T21:56Z 200K followers, XXX engagements


"BSOD kernel_security_check_failure - Windows 10"  
[YouTube Link](https://youtube.com/watch?v=IDuQno9FqNA) [@roelvandepaar](/creator/youtube/roelvandepaar) 2021-02-19T21:57Z 200K followers, XX engagements


"Salesforce: Mutual Authentication / two way SSL & OAuth"  
[YouTube Link](https://youtube.com/watch?v=_7KiLGdvwp8) [@roelvandepaar](/creator/youtube/roelvandepaar) 2021-01-27T15:28Z 200K followers, XXX engagements


"How to configure RabbitMQ client to use SSL"  
[YouTube Link](https://youtube.com/watch?v=daMYcvrxr4E) [@roelvandepaar](/creator/youtube/roelvandepaar) 2022-11-20T18:18Z 200K followers, 2844 engagements


"GIS: Using dBase table converted from CSV to Make Route Event Layer"  
[YouTube Link](https://youtube.com/watch?v=gML6RXdYVqs) [@roelvandepaar](/creator/youtube/roelvandepaar) 2021-11-28T18:05Z 200K followers, XX engagements


"IIS SSL Settings - Require client certificates and self-signed certificates"  
[YouTube Link](https://youtube.com/watch?v=oFcn6oQHbRA) [@roelvandepaar](/creator/youtube/roelvandepaar) 2020-10-06T21:31Z 200K followers, XXX engagements


"DevOps & SysAdmins: Slow performance of DBASE IV on Windows Server 2008"  
[YouTube Link](https://youtube.com/watch?v=oQeYqL6KxEQ) [@RoelVandePaar](/creator/youtube/RoelVandePaar) 2021-06-22T20:41Z 200K followers, XX engagements