JavaScript heap out of memory when building Vue.js app

I ran into this problem too. The memory limitation was with Node so running this command worked:

NODE_OPTIONS=--max_old_space_size=4096 npm run build

On Windows, use:

set NODE_OPTIONS=--max_old_space_size=4096 
npm run build

The default memory limit for Node is 512MB, running this command temporarily increased it to 4GB.

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