Настроил yuicompressor по гайду
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В File Watchers

Но при изменении любого css файла в проекте просто выдает
YUICompressor Version: 2.4.8
Usage: java -jar yuicompressor-2.4.8.jar [options] [input file]
Global Options
-V, --version Print version information
-h, --help Displays this information
--type <js|css> Specifies the type of the input file
--charset <charset> Read the input file using <charset>
--line-break <column> Insert a line break after the specified column number
-v, --verbose Display informational messages and warnings
-o <file> Place the output into <file>. Defaults to stdout.
Multiple files can be processed using the following syntax:
java -jar yuicompressor.jar -o '.css$:-min.css' *.css
java -jar yuicompressor.jar -o '.js$:-min.js' *.js
JavaScript Options
--nomunge Minify only, do not obfuscate
--preserve-semi Preserve all semicolons
--disable-optimizations Disable all micro optimizations
If no input file is specified, it defaults to stdin. In this case, the 'type'
option is required. Otherwise, the 'type' option is required only if the input
file extension is neither 'js' nor 'css'.
Process finished with exit code 1