Module build failed: TypeError: Buffer.alloc is not a function

[dzoba]

There is an issue with the new release that is killing my build. It is with this line:

https://github.com/kevva/to-ico/blob/master/index.js#L15

This is the relevant part of the error:

 70% 1406/1406 build modulesModuleBuildError: Module build failed: TypeError: Buffer.alloc is not a function
    at n (/Users/christopherdzoba/v/brawndo/node_modules/to-ico/index.js:15:21)
    at /Users/christopherdzoba/v/brawndo/node_modules/to-ico/index.js:90:18

I am using node 5.2.0

[dzoba]

Looks like Buffer.alloc was added in 5.10.0 https://nodejs.org/api/buffer.html#buffer_class_method_buffer_alloc_size_fill_encoding

Ideally the package could work for many versions, but if not then this should be updated: https://github.com/kevva/to-ico/blob/master/package.json#L13

[mynnx]

Can confirm. Module is used by https://github.com/jantimon/favicons-webpack-plugin; my webpack-dev-server build hangs and my webpack build fails with that error as well.

Upgrading to Node 6 solved the problem, but not everyone can do so.

[SamVerschueren]

Buffer.alloc was backported to Node 4 as well. Make sure you have the latest LTS version.

[kevva]

Yup, should be available in Node.js 4 (since 4.5.0). See https://nodejs.org/dist/latest-v4.x/docs/api/buffer.html#buffer_class_method_buffer_alloc_size_fill_encoding.

[dzoba]

Thank you @SamVerschueren and @kevva - you guys are totally right. Unfortunately we won't be able to update node versions for a couple weeks, so, in the mean time I've forked the relevant repos and reverted the change until we can update node. I'm leaving this note here to save anyone else some work who may be in the same boat.

https://github.com/dzoba/favicons-webpack-plugin -> https://github.com/dzoba/favicons -> https://github.com/dzoba/to-ico

And in package.json

    "favicons-webpack-plugin": "git://github.com/dzoba/favicons-webpack-plugin.git",