plugin will throw error with virtual file

[wszgrcy]

I create a entry file by use webpack.EntryPlugin.createDependency and custom prefix,

and can resolve by readResource

but when use license-webpack-plugin, it can find this file(because of create dynamic),and throw error

[error] HookWebpackError: ENOENT: no such file or directory, scandir

Error: ENOENT: no such file or directory, scandir
    at Object.readdirSync (fs.js:1047:3)
    at CacheBackend.provideSync (E:\Code\angular\testclass\angular-miniprogram-template\node_modules\enhanced-resolve\lib\CachedInputFileSystem.js:233:32)
    at WebpackFileSystem.listPaths (E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\WebpackFileSystem.js:78:24)
    at LicenseTextReader.readLicense (E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\LicenseTextReader.js:37:54)
    at PluginChunkReadHandler.processModule (E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\PluginChunkReadHandler.js:46:62)
    at E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\PluginChunkReadHandler.js:22:23
    at WebpackModuleFileIterator.internalCallback (E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\WebpackModuleFileIterator.js:25:13)
    at WebpackModuleFileIterator.iterateFiles (E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\WebpackModuleFileIterator.js:10:9)
    at E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\PluginChunkReadHandler.js:20:32
    at WebpackChunkModuleIterator.iterateModules (E:\Code\angular\testclass\angular-miniprogram-template\node_modules\license-webpack-plugin\dist\WebpackChunkModuleIterator.js:28:21)

Error will throw in this line