Unresolved reference error with all kotlin std functions or fields

Every function that is shipped with kotlin is unresolved:

I've also tried "getting started" project and it doesn't work either.

from log:
```
[Info - 17:02:57] client Adding 119 files to class path
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.intellij.openapi.util.io.FileSystemUtil$FallbackMediatorImpl (file:/home/yan/.vscode/extensions/fwcd.kotlin-0.1.11/build/install/kotlin-language-server/lib/kotlin-compiler-1.2.50.jar) to field java.io.File.fs
WARNING: Please consider reporting this to the maintainers of com.intellij.openapi.util.io.FileSystemUtil$FallbackMediatorImpl
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[Info - 17:02:57] client DidChangeConfigurationParams [
settings = {"kotlin":{}}
]
[Info - 17:02:57] debounce0 Linting .../yanpas/RssFind.kt
```