The error “invalidindexerror: reindexing only valid with uniquely valued index objects” occurs when you try to contact two or more pandas dataframes like data = pd.concat([dataframe1,dataframe2], axis=1) if you remove duplicate contents that conflict or additional columns, it will still throw an invalid-index-error. Example 1: lets try to join below two data-frames and see the result we will get. Below…
The Error “NameError: name ‘nltk’ is not defined” error occurs when developing python applications that uses Natural Language Toolkit (nltk) modules without installing or importing it first. Sometimes when trying to import it you might encounter an error that says “ModuleNotFoundError: No module named ‘nltk’”. The Natural Language Toolkit (nltk) is one of the most popular and most used libraries…
The “ImportError: cannot import name ‘force_text’ from ‘django.utils.encoding’” error will occur in Django starting from version 4.0 when the ‘force_text’ method is removed and replaced with ‘force_str’. If the function force_text() cannot be found in Django.utils.encoding module, it will throw the above error. First, you need to know the purpose of the Django encoding module and why they’re handy when…
The python error “PermissionError: [Errno 13] Permission denied” can be fixed in various ways after knowing the root cause. This error mainly occurs through the open method which is used to open and read file. For example, if the path passed into the open() method as an argument is not a file, python will throw an error. Also, if you…
The Swift error “type of expression is ambiguous without more context” occurs when you try to update your project to the latest version of Swift or XCode to 7.0.1+ from version 6.4. The compiler will throw this error letting you know that there’s something wrong somewhere in your code. Also, you have to be specific enough to help the compiler…
The “Uncaught syntaxerror: Cannot use import statement outside a module” occurs in JavaScript and Typescript when you apply the ES6 Modules concept/syntax in a particular script that’s not loaded as a local or third-party module. This happens as a result of importing ECMAScript 6 that is exported as a function or a class in a different file. Also, when linking…
This error “sh: react-scripts: command not found error command failed with exit code 127” mostly occurs when you clone a new repository of react.js application. When you try to run the application with the following commands you will surely encounters it because of no existing node-modules directory. You will also experience the above error if you accidentally type the react…
The JavaScript “forEach is not a function” error occurs when you call the method ‘forEach()’ on a variable or property that’s not of type array, ‘set’ or ‘Map’ object. Because JavaScript is not a statically type programming-language, you will encounter this error often when developing a JavaScript web application. If you call an array method on a string for example,…
To solve the “error: cannot find module in Node.js or express” you have to first know why this error occurs. Mostly, this error occurs when you’re going through a Node.js tutorial and you reach a point where you need to install some specific module, package or a library. If you don’t properly install it using the npm install command and…
The error “error TS1136: Property assignment expected.” In typescript and Javascript occurs for various reason. In this ts tutorial, we will see why the error occurs and how to solve it in VSCODE. The error mainly occurs when you have an already existing babel project and you try to transition it to Typescript. The compiler will throw an error in…
