“PKIX path building failed” and “unable to find valid certification path to requested target”

Go to URL in your browser: firefox – click on HTTPS certificate chain (the lock icon right next to URL address). Click “more info” > “security” > “show certificate” > “details” > “export..”. Pickup the name and choose file type example.cer chrome – click on site icon left to address in address bar, select “Certificate” … Read more

Babel 6 regeneratorRuntime is not defined

babel-polyfill (deprecated as of Babel 7.4) is required. You must also install it in order to get async/await working. package.json .babelrc .js with async/await (sample code) In the startup file If you are using webpack you need to put it as the first value of your entry array in your webpack configuration file (usually webpack.config.js), … Read more

When should you use a class vs a struct in C++?

The differences between a class and a struct in C++ is: struct members and base classes/structs are public by default. class members and base classes/struts are private by default. Both classes and structs can have a mixture of public, protected and private members, can use inheritance and can have member functions. I would recommend you: … Read more

IOException: The process cannot access the file ‘file path’ because it is being used by another process

What is the cause? The error message is pretty clear: you’re trying to access a file, and it’s not accessible because another process (or even the same process) is doing something with it (and it didn’t allow any sharing). Debugging It may be pretty easy to solve (or pretty hard to understand), depending on your … Read more