Cannot read 'compilation' of undefined

[Mossar]

Hello!

I try to use your plugin with Webpack 2.1.0 and I get following error:

C:\Projekty\web-frontend\node_modules\git-revision-webpack-plugin\lib\build-file.js:6
  compiler.hooks.compilation.tap('compilation', (compilation) => {
                ^

TypeError: Cannot read property 'compilation' of undefined
at buildFile (C:\Projekty\web-frontend\node_modules\git-revision-webpack-plugin\lib\build-file.js:6:17)
    at GitRevisionPlugin.apply (C:\Projekty\web-frontend\node_modules\git-revision-webpack-plugin\lib\index.js:30:3)
    at Compiler.apply (C:\Projekty\web-frontend\node_modules\tapable\lib\Tapable.js:375:16)
    at WebpackOptionsApply.process (C:\Projekty\web-frontend\node_modules\webpack\lib\WebpackOptionsApply.js:58:18)
    at webpack (C:\Projekty\web-frontend\node_modules\webpack\lib\webpack.js:25:48)
    at Object.<anonymous> (C:\Projekty\web-frontend\conf\browsersync.conf.js:8:24)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Function.Module._load (C:\Projekty\web-frontend\node_modules\gulp-hub\lib\load-subfile.js:26:32)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (C:\Projekty\web-frontend\gulp_tasks\browsersync.js:5:25)
    at Module._compile (module.js:570:32)

Is it possible to run it with Webpack 2?

[simonfyi]

Hi @Mossar,
v3.0.0 Is released with support for Webpack 4.
You could try using an older release, or upgrade to Webpack 4 (which might take you some time).

@pirelenito Maybe it's worth adding dependencies to the README. 😃

[pirelenito]

Thanks for the reply @simonfyi ❤️

I've just added a notice in the readme about version compatibility and how to use it with older versions of webpack.

@Mossar, while you don't upgrade to webpack 4 you can use an older version of this package:

npm install git-revision-webpack-plugin@2.5.1

The only difference between that version and the latest is webpack 4 support.

[pirelenito]

I'll close the issue, but feel free to open it if you have move questions.