Akash Mittal

579 posts

This is Akash Mittal, an overall computer scientist. He is in software development from more than 10 years and worked on technologies like ReactJS, React Native, Php, JS, Golang, Java, Android etc. Being a die hard animal lover is the only trait, he is proud of.

‘javac’ is not recognized as an internal or external command, operable program or batch file

Akash Mittal
March 1, 2021

Java throws the error, ‘javac’ is not recognized as an internal or external command, operable program or batch file, if the path of JDK is not set in environment variable.…

‘int’ object is not iterable – Python Error

Akash Mittal
September 5, 2022

Python throws the error ‘int’ object is not iterable, when we try to use an integer value as an array or list. If you want to make your variable iterable,…

‘series’ objects are mutable, thus they cannot be hashed – Python Error

Akash Mittal
September 5, 2022

Python throws the error, ‘series’ objects are mutable, thus they cannot be hashed when a mutable object like array is used as dictionary key for some other object. According to…

‘_xsrf’ argument missing from post – Python Jupyter Notebook Error

Akash Mittal
February 28, 2021

To solve the error ‘_xsrf’ argument missing from post, thrown by Jupyter notebook in Python, you just need to open a new instance in different browser without closing the old…

‘str’ object does not support item assignment – Python Error

Akash Mittal
September 5, 2022

You get Python error, ‘str’ object does not support item assignment, when you try to modify the string which is immutable in nature. Here is the thing, unlike languages like…

‘nonetype’ object has no attribute ‘append’ – Python Error

Akash Mittal
September 5, 2022

Python throws error ‘nonetype’ object has no attribute ‘append’ when we try to store the outcome of append in the array. Let’s understand this with an example – This code…

A router may have only one child element – React Router Dom Error

Akash Mittal
February 26, 2021

React router dom throws the error that a router may have only one child element if more than 1 routes are defined without enclosing them in div or switch. Generally,…

com.android.ide.common.process.processexception: failed to execute aapt

Akash Mittal
February 26, 2021

Android throws the error com.android.ide.common.process.processexception: failed to execute aapt when it is not able to recognize AAPT. This is react native and ionic error. To solve this issue either recreate…

Component definition is missing display name – React Native Error

Akash Mittal
February 26, 2021

React native throws error component definition is missing display name, when an anonymous function is exported. This is a ESLint warning because although you can work with anonymous functions, it…

cannot add a child that doesn’t have a yoganode – React Native Error

Akash Mittal
September 5, 2022

As the error (cannot add a child that doesn’t have a yoganode) indicates, there is some node which is not a valid element. This is the problem but could arise…

error: enoent: no such file or directory, uv_cwd – React Native Error

Akash Mittal
February 26, 2021

React native throws error: enoent: no such file or directory, uv_cwd, when you update file names or project name or delete some folder. This is a common error which requires…

uncaught (in promise) syntaxerror: unexpected token

Akash Mittal
September 5, 2022

React throws error uncaught (in promise) syntaxerror: unexpected token < in json at position 0, when it is not able to find the JSON file. But why this happens? Because…

React hook useeffect has a missing dependency

Akash Mittal
September 5, 2022

Eslint throws react hook useeffect has a missing dependency when we include partial dependency parameters. It says you should either include all or none. This is just a warning and…

React Error – jsx expressions must have one parent element

Akash Mittal
September 5, 2022

React throws the error, jsx expressions must have one parent element, when you try to return JSX without having any enclosing container element. This is a very common error and…

You should not use route or withrouter() or Link outside a router

Akash Mittal
September 5, 2022

React router throws the error, “you should not use route or withrouter() outside a router” when you have not defined BrowserRouter and still using Link or NavLink or Router components.…

could not find a declaration file for module – React TypeScript Error

Akash Mittal
February 24, 2021

React Typescript throws the error, could not find a declaration file for module, due to number of reasons. Check out the possible solutions to solve the issue – Suppose your…

‘react-scripts’ is not recognized as an internal or external command

Akash Mittal
February 24, 2021

React throws error ‘react-scripts’ is not recognized as an internal or external command, when either react-scripts is not installed or there is folder permission errors. Follow these steps to solve…

React Error – module not found: can’t resolve

Akash Mittal
February 22, 2021

React throws the error, module not found: can’t resolve, when either the module is not defined or its path is incorrect. Case 1: When module is not defined If the…

React Error: target container is not a dom element

Akash Mittal
February 22, 2021

React throws the error, target container is not a dom element, when we include the build script before the root element. The solution is to always include the build scripts…

xcrun: error: unable to find utility “instruments”, not a developer tool or in path

Akash Mittal
February 22, 2021

React Native throws error, “xcrun: error: unable to find utility “instruments”, not a developer tool or in path” on iOS when command line tools location is not set. The exact…