build with :optimizations is not working on Windows

Question

Just went through (link: https://clojurescript.org/guides/quick-start text: Quick Start) and got an error at 'Production Builds' section.
Looks like it currently unable to compile with :optimizations

`
Exception in thread "main" java.nio.file.InvalidPathException: Illegal char <:> at index 2: /C:/prj/out/cljs/core.js, compiling:(C:\prj\release.clj:3:1)

    at clojure.lang.Compiler.load(Compiler.java:7391)
    at clojure.lang.Compiler.loadFile(Compiler.java:7317)
    at clojure.main$load_script.invokeStatic(main.clj:275)
    at clojure.main$script_opt.invokeStatic(main.clj:335)
    at clojure.main$script_opt.invoke(main.clj:330)
    at clojure.main$main.invokeStatic(main.clj:421)
    at clojure.main$main.doInvoke(main.clj:384)
    at clojure.lang.RestFn.invoke(RestFn.java:408)
    at clojure.lang.Var.invoke(Var.java:379)
    at clojure.lang.AFn.applyToHelper(AFn.java:154)
    at clojure.lang.Var.applyTo(Var.java:700)
    at clojure.main.main(main.java:37)

Caused by: java.nio.file.InvalidPathException: Illegal char <:> at index 2: /C:/prj/out/cljs/core.js

    at sun.nio.fs.WindowsPathParser.normalize(Unknown Source)
    at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
    at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
    at sun.nio.fs.WindowsPath.parse(Unknown Source)
    at sun.nio.fs.WindowsFileSystem.getPath(Unknown Source)
    at com.google.javascript.jscomp.SourceMapResolver.getRelativePath(SourceMapResolver.java:73)
    at com.google.javascript.jscomp.SourceMapResolver.extractSourceMap(SourceMapResolver.java:53)
    at com.google.javascript.jscomp.JsAst.parse(JsAst.java:168)
    at com.google.javascript.jscomp.JsAst.getAstRoot(JsAst.java:55)
    at com.google.javascript.jscomp.CompilerInput.getAstRoot(CompilerInput.java:122)
    at com.google.javascript.jscomp.Compiler.hoistNoCompileFiles(Compiler.java:1992)
    at com.google.javascript.jscomp.Compiler.orderInputs(Compiler.java:1890)
    at com.google.javascript.jscomp.Compiler.parseInputs(Compiler.java:1793)
    at com.google.javascript.jscomp.Compiler.parseForCompilationInternal(Compiler.java:982)
    at com.google.javascript.jscomp.Compiler.access$300(Compiler.java:102)
    at com.google.javascript.jscomp.Compiler$6.call(Compiler.java:964)
    at com.google.javascript.jscomp.Compiler$6.call(Compiler.java:961)
    at com.google.javascript.jscomp.CompilerExecutor$2.call(CompilerExecutor.java:101)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

`

Answer 1

Comment made by: mfikes

Still occurs with 1.10.x with current master (1.10.225):

`
java -cp "cljs.jar;src" cljs.main --optimizations advanced -c hello-world.core
Exception in thread "main" java.nio.file.InvalidPathException: Illegal char <:> at index 2: /C:/Users/mfikes/test_master/hello-world/out/cljs/core.js

    at java.base/sun.nio.fs.WindowsPathParser.normalize(Unknown Source)
    at java.base/sun.nio.fs.WindowsPathParser.parse(Unknown Source)
    at java.base/sun.nio.fs.WindowsPathParser.parse(Unknown Source)
    at java.base/sun.nio.fs.WindowsPath.parse(Unknown Source)
    at java.base/sun.nio.fs.WindowsFileSystem.getPath(Unknown Source)
    at com.google.javascript.jscomp.SourceMapResolver.getRelativePath(SourceMapResolver.java:73)
    at com.google.javascript.jscomp.SourceMapResolver.extractSourceMap(SourceMapResolver.java:53)
    at com.google.javascript.jscomp.JsAst.parse(JsAst.java:168)
    at com.google.javascript.jscomp.JsAst.getAstRoot(JsAst.java:55)
    at com.google.javascript.jscomp.CompilerInput.getAstRoot(CompilerInput.java:134)
    at com.google.javascript.jscomp.Compiler.hoistNoCompileFiles(Compiler.java:2104)
    at com.google.javascript.jscomp.Compiler.orderInputs(Compiler.java:1926)
    at com.google.javascript.jscomp.Compiler.parseInputs(Compiler.java:1828)
    at com.google.javascript.jscomp.Compiler.parseForCompilationInternal(Compiler.java:981)
    at com.google.javascript.jscomp.Compiler.access$300(Compiler.java:101)
    at com.google.javascript.jscomp.Compiler$6.call(Compiler.java:963)
    at com.google.javascript.jscomp.Compiler$6.call(Compiler.java:960)
    at com.google.javascript.jscomp.CompilerExecutor$2.call(CompilerExecutor.java:101)
    at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.base/java.lang.Thread.run(Unknown Source)

`

Answer 2

Comment made by: mfikes

A workaround appears to involve putting a hyphen in the {{:output-dir}} name, as in {{"out-foo"}}.

Answer 3

Comment made by: slipset

https://github.com/google/closure-compiler/issues/2611

Answer 4

Reference: https://clojure.atlassian.net/browse/CLJS-2401 (reported by alex+import)

Answer 5

try open the /hello-world/out/cljs/core.js directory in your favourite text editor, then delete and restore again some words in there.

Hope this answer your question.