Showing error this error Your jamb registration number entered is invalid or does not exist on our database

Summary The issue at hand is an invalid or non-existent Jamb registration number error on the University Of Calabar Result Portal. This error occurs when a user attempts to enter their Jamb registration number, and the system fails to validate it. The root cause of this issue is likely due to a mismatch between the … Read more

Is it possible to solve puzzle captcha without initial piece

Summary Solving puzzle CAPTCHAs without initial pieces or known jigsaw borders is a challenging task, especially when background images and positions are constantly changing. Computer vision techniques can be employed to tackle this problem, but their effectiveness is limited by the lack of distinct features. The question remains whether OpenCV alone can suffice to find … Read more

Why does this generic function work for arrays but fail for strings, even though both have slice()?

Summary The issue lies in the generic constraint and type inference of the cutValue function. The function is designed to work with types that have a slice method, but the return type of the slice method is not considered. Both strings and arrays have a slice method, but they return different types, causing the type … Read more

Django startproject fails after I manually created the project files/folders (name conflict?)

Summary The issue arises when attempting to create a new Django project using django-admin startproject after manually creating the project files and folders. This results in a CommandError due to name conflicts with existing files or directories. The correct approach involves understanding the project structure and command order for setting up a Django project with … Read more

How can a wrapping Publisher operator also conform to ConnectablePublisher only when the upstream publisher does?

Summary The problem revolves around creating a wrapping Publisher that conforms to ConnectablePublisher conditionally, based on the behavior of the upstream publisher. This requires a nuanced approach since the standard wrapper does not accommodate conditional connectability. The solution involves using inner classes to maintain mutable data secretly within a structure, allowing for dynamic adjustment of … Read more

Office-JS Word Add-in extremely slow when inserting 90k+ soft hyphens (>300 page document)

Summary The Office-JS Word add-in is experiencing extreme performance issues when inserting 90,000+ soft hyphens into a large document (~300-350 pages). The current implementation, which uses insertText and getOoxml/insertOoxml, is slow and inefficient, taking around 60-100 minutes to complete. The goal is to achieve this task in under a few minutes or seconds without breaking … Read more

16KB memory page size Flutter

Summary The issue at hand is related to the 16KB memory page size requirement for Android apps, which is causing compatibility issues with older Android versions, such as Android 12. The app is built using Flutter and is being uploaded to the Google Play Store. Despite attempts to update Gradle and YAML configurations, the issue … Read more

File Upload issue in NestJs

Summary The issue encountered is related to file upload in a NestJS application, where the @UploadedFile() decorator returns undefined. This problem occurred when attempting to upload multiple files and then simplified to a single file upload, with the same undefined result. Root Cause The root cause of this issue lies in the way the file … Read more

I want advice on “how to parse any file using python/java/c?”

Summary When dealing with parsing files in programming, choosing the right approach is crucial for efficiency and reliability. The decision to build a custom parser or use existing libraries depends on several factors, including the type of file, availability of libraries, and the programming language being used. Understanding the file format and evaluating available libraries … Read more