The Less compiler (lessc) encounters an issue on a fresh operating system. ([TypeError: undefined is not a function])

Question

The Less compiler (lessc) encounters an issue on a fresh operating system. ([TypeError: undefined is not a function])

After setting up my new development environment on Windows 10, I encountered an issue with less.

Following the instructions on lesscss.org, I installed less using:

npm install -g less

The installation process completed without any errors.

However, when trying to compile a .less file in the command line:

lessc input.less output.css

I received the following error message:

[TypeError: undefined is not a function]

Even after attempting to reinstall less and npm, the issue persisted. On my old system, compiling the same file worked perfectly. It appears that there may be a problem with the runtime environment on my new machine causing lessc to call an undefined function.

What would be the most effective approach to identifying and resolving this error?

javascript css npm less

Answer 1

Answer №1

There are two ways to solve this issue effectively:

One option is to add the path of lessc to your Environment Variables. The PATH may look something like this: C:\Users\aayus\AppData\Roaming\npm\node_modules\less\bin\lessc. After setting up the path, you can run the command: lessc input.less output.css.

Another approach is to provide the full path to your lessc compiler while compiling your code: C:\Users\aayus\AppData\Roaming\npm\node_modules\less\bin\lessc styles.less styles.css.

If neither of these methods work for you, an alternative solution is to use an Online compiler. You can access one through this link: . Simply paste your less code and click on "Compile less" to generate the desired output.

Answer 2

There are two ways to solve this issue effectively:

One option is to add the path of lessc to your Environment Variables. The PATH may look something like this: C:\Users\aayus\AppData\Roaming\npm\node_modules\less\bin\lessc. After setting up the path, you can run the command: lessc input.less output.css.

Another approach is to provide the full path to your lessc compiler while compiling your code: C:\Users\aayus\AppData\Roaming\npm\node_modules\less\bin\lessc styles.less styles.css.

If neither of these methods work for you, an alternative solution is to use an Online compiler. You can access one through this link: . Simply paste your less code and click on "Compile less" to generate the desired output.

The Less compiler (lessc) encounters an issue on a fresh operating system. ([TypeError: undefined is not a function])

Answer №1

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