tsc is not recognized as internal or external command [Solved]

The “tsc is not recognized as an internal or external command” error occurs due to one of the following reasons:

1. The typescript package is missing in your correct project directory.

2. Using the package without installing it in the project.

3. Installed the package in a global context and trying to use in project local context.

To solve the error “tsc is not recognized as an internal or external command”, open the terminal and run the npm install -g typescript command to install the ‘typescript’ package globally.

npm install -g typescript

Now, verify the successful installation or not using the ‘tsc —version’ command if the version number prints in the terminal then you’re successfully installed otherwise not.

If you’re using the yarn as your package manager, then you can use the below command to install it:

yarn add -g typescript

If you’re still facing the error, then follow the below steps to resolve it.

1. Remove the node_modules folder and package-lock.json file, inside your project directory by using the below command.

rm-rf node_modules package-lock.json

or you can remove it manually by right-clicking on it and select the delete option.

2. Clear the npm cache.

npm clean cache --force

3. Re-install the node modules again by running the npm install command.

Conclusion

The ‘tsc’ is not recognized as internal or external command error occurs, if you’re trying to use a TypeScript that is not currently installed in your project. To solve the error install the tsc package globally in your system by running the npm install -g tsc command