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clojurescriptfigwheel

:libs - c:\...\Blocks-Editor\app\js\dependencies\google-blockly\core\blocks.js is not a relative path

Sorry, it must be something really stupid but I can't figure out what.

In the REPL, (start-figwheel!) outputs:

Figwheel: Starting server at http://0.0.0.0:3449
Figwheel: Watching build - dev
Compiling "app/js/compiled/app.js" from ["src" "dev/cljs/"]...
Failed to compile "app/js/compiled/app.js" in 0.907 seconds.
----  Exception    ----

c:\...\Blocks-Editor\app\js\dependencies\google-blockly\core\blocks.js is not a relative path

----  Exception Stack Trace  ----

java.lang.IllegalArgumentException: c:\Users\u15194\Desktop\Blocks-Editor\app\js\dependencies\google-blockly\core\blocks.js is not a relative path
at clojure.java.io$as_relative_path.invokeStatic (io.clj:414)
clojure.java.io$file.invokeStatic (io.clj:426)
clojure.java.io$file.invoke (io.clj:418)
cljs.closure$write_javascript.invokeStatic (closure.clj:1636)
cljs.closure$write_javascript.invoke (closure.clj:1629)
cljs.closure$source_on_disk.invokeStatic (closure.clj:1675)
cljs.closure$source_on_disk.invoke (closure.clj:1670)
cljs.closure$output_unoptimized$fn__13822.invoke (closure.clj:1713)
clojure.core$map$fn__4785.invoke (core.clj:2646)
clojure.lang.LazySeq.sval (LazySeq.java:40)
clojure.lang.LazySeq.seq (LazySeq.java:49)
clojure.lang.RT.seq (RT.java:521)
clojure.core$seq__4357.invokeStatic (core.clj:137)
clojure.core$filter$fn__4812.invoke (core.clj:2700)
clojure.lang.LazySeq.sval (LazySeq.java:40)
clojure.lang.LazySeq.seq (LazySeq.java:49)
clojure.lang.RT.seq (RT.java:521)
clojure.core$seq__4357.invokeStatic (core.clj:137)
clojure.core$map$fn__4785.invoke (core.clj:2637)
clojure.lang.LazySeq.sval (LazySeq.java:40)
clojure.lang.LazySeq.seq (LazySeq.java:49)
clojure.lang.Cons.next (Cons.java:39)
clojure.lang.RT.next (RT.java:688)
clojure.core$next__4341.invokeStatic (core.clj:64)
clojure.core$str$fn__4419.invoke (core.clj:546)
clojure.core$str.invokeStatic (core.clj:544)
clojure.core$str.doInvoke (core.clj:533)
clojure.lang.RestFn.applyTo (RestFn.java:139)
clojure.core$apply.invokeStatic (core.clj:646)
clojure.core$apply.invoke (core.clj:641)
cljs.closure$deps_file.invokeStatic (closure.clj:1408)
cljs.closure$deps_file.invoke (closure.clj:1405)
cljs.closure$output_deps_file.invokeStatic (closure.clj:1428)
cljs.closure$output_deps_file.invoke (closure.clj:1427)
cljs.closure$output_unoptimized.invokeStatic (closure.clj:1721)
cljs.closure$output_unoptimized.doInvoke (closure.clj:1704)
clojure.lang.RestFn.applyTo (RestFn.java:139)
clojure.core$apply.invokeStatic (core.clj:648)
clojure.core$apply.invoke (core.clj:641)
cljs.closure$build.invokeStatic (closure.clj:2165)
cljs.closure$build.invoke (closure.clj:2055)
cljs.build.api$build.invokeStatic (api.clj:206)
cljs.build.api$build.invoke (api.clj:193)
figwheel_sidecar.components.cljs_autobuild$cljs_build.invokeStatic (cljs_autobuild.clj:28)
figwheel_sidecar.components.cljs_autobuild$cljs_build.invoke (cljs_autobuild.clj:27)
figwheel_sidecar.build_middleware.injection$hook$fn__24627.invoke (injection.clj:197)
figwheel_sidecar.components.cljs_autobuild$notify_command_hook$fn__25008.invoke (cljs_autobuild.clj:68)
figwheel_sidecar.components.cljs_autobuild$figwheel_start_and_end_messages$fn__25000.invoke (cljs_autobuild.clj:48)
figwheel_sidecar.components.cljs_autobuild$catch_print_hook$fn__25040.invoke (cljs_autobuild.clj:185)
figwheel_sidecar.components.cljs_autobuild$open_urls_hook$fn__25032.invoke (cljs_autobuild.clj:141)
figwheel_sidecar.build_middleware.stamp_and_clean$hook$fn__24985.invoke (stamp_and_clean.clj:66)
figwheel_sidecar.components.cljs_autobuild$color_output$fn__25012.invoke (cljs_autobuild.clj:79)
figwheel_sidecar.components.cljs_autobuild.CLJSAutobuild.start (cljs_autobuild.clj:255)
com.stuartsierra.component$eval23404$fn__23405$G__23394__23407.invoke (component.cljc:5)
com.stuartsierra.component$eval23404$fn__23405$G__23393__23410.invoke (component.cljc:5)
clojure.lang.Var.invoke (Var.java:379)
clojure.lang.AFn.applyToHelper (AFn.java:154)
clojure.lang.Var.applyTo (Var.java:700)
clojure.core$apply.invokeStatic (core.clj:648)
clojure.core$apply.invoke (core.clj:641)
com.stuartsierra.component$try_action.invokeStatic (component.cljc:117)
com.stuartsierra.component$try_action.invoke (component.cljc:116)
com.stuartsierra.component$update_system$fn__23463.invoke (component.cljc:139)
clojure.lang.ArraySeq.reduce (ArraySeq.java:114)
clojure.core$reduce.invokeStatic (core.clj:6544)
clojure.core$reduce.invoke (core.clj:6527)
com.stuartsierra.component$update_system.invokeStatic (component.cljc:135)
com.stuartsierra.component$update_system.doInvoke (component.cljc:129)
clojure.lang.RestFn.invoke (RestFn.java:445)
com.stuartsierra.component$start_system.invokeStatic (component.cljc:163)
com.stuartsierra.component$start_system.invoke (component.cljc:155)
com.stuartsierra.component$start_system.invokeStatic (component.cljc:161)
com.stuartsierra.component$start_system.invoke (component.cljc:155)
com.stuartsierra.component.SystemMap.start (component.cljc:178)
com.stuartsierra.component$eval23404$fn__23405$G__23394__23407.invoke (component.cljc:5)
com.stuartsierra.component$eval23404$fn__23405$G__23393__23410.invoke (component.cljc:5)
clojure.lang.Atom.swap (Atom.java:37)
clojure.core$swap_BANG_.invokeStatic (core.clj:2260)
clojure.core$swap_BANG_.invoke (core.clj:2253)
figwheel_sidecar.system.FigwheelSystem.start (system.clj:118)
com.stuartsierra.component$eval23404$fn__23405$G__23394__23407.invoke (component.cljc:5)
com.stuartsierra.component$eval23404$fn__23405$G__23393__23410.invoke (component.cljc:5)
clojure.lang.Var.invoke (Var.java:379)
clojure.lang.AFn.applyToHelper (AFn.java:154)
clojure.lang.Var.applyTo (Var.java:700)
clojure.core$apply.invokeStatic (core.clj:648)
clojure.core$apply.invoke (core.clj:641)
com.stuartsierra.component$try_action.invokeStatic (component.cljc:117)
com.stuartsierra.component$try_action.invoke (component.cljc:116)
com.stuartsierra.component$update_system$fn__23463.invoke (component.cljc:139)
clojure.lang.ArraySeq.reduce (ArraySeq.java:109)
clojure.core$reduce.invokeStatic (core.clj:6544)
clojure.core$reduce.invoke (core.clj:6527)
com.stuartsierra.component$update_system.invokeStatic (component.cljc:135)
com.stuartsierra.component$update_system.doInvoke (component.cljc:129)
clojure.lang.RestFn.invoke (RestFn.java:445)
com.stuartsierra.component$start_system.invokeStatic (component.cljc:163)
com.stuartsierra.component$start_system.invoke (component.cljc:155)
com.stuartsierra.component$start_system.invokeStatic (component.cljc:161)
com.stuartsierra.component$start_system.invoke (component.cljc:155)
com.stuartsierra.component.SystemMap.start (component.cljc:178)
figwheel_sidecar.system$start_figwheel_system$fn__25248.invoke (system.clj:658)
figwheel_sidecar.system$dispatch_system_component_errors.invokeStatic (system.clj:644)
figwheel_sidecar.system$dispatch_system_component_errors.invoke (system.clj:642)
figwheel_sidecar.system$start_figwheel_system.invokeStatic (system.clj:658)
figwheel_sidecar.system$start_figwheel_system.invoke (system.clj:656)
figwheel_sidecar.system$start_figwheel_BANG__STAR_.invokeStatic (system.clj:693)
figwheel_sidecar.system$start_figwheel_BANG__STAR_.invoke (system.clj:679)
clojure.lang.AFn.applyToHelper (AFn.java:156)
clojure.lang.AFn.applyTo (AFn.java:144)
clojure.core$apply.invokeStatic (core.clj:646)
clojure.core$apply.invoke (core.clj:641)
figwheel_sidecar.system$start_figwheel_BANG_.invokeStatic (system.clj:737)
figwheel_sidecar.system$start_figwheel_BANG_.doInvoke (system.clj:695)
clojure.lang.RestFn.invoke (RestFn.java:397)
clojure.lang.AFn.applyToHelper (AFn.java:152)
clojure.lang.RestFn.applyTo (RestFn.java:132)
clojure.core$apply.invokeStatic (core.clj:646)
clojure.core$apply.invoke (core.clj:641)
figwheel_sidecar.repl_api$start_figwheel_BANG_$fn__25265.invoke (repl_api.clj:28)
clojure.lang.AFn.applyToHelper (AFn.java:154)
clojure.lang.AFn.applyTo (AFn.java:144)
clojure.lang.Var.alterRoot (Var.java:303)
clojure.core$alter_var_root.invokeStatic (core.clj:5299)
clojure.core$alter_var_root.doInvoke (core.clj:5294)
clojure.lang.RestFn.invoke (RestFn.java:425)
figwheel_sidecar.repl_api$start_figwheel_BANG_.invokeStatic (repl_api.clj:28)
figwheel_sidecar.repl_api$start_figwheel_BANG_.doInvoke (repl_api.clj:25)
clojure.lang.RestFn.invoke (RestFn.java:397)
user$start.invokeStatic (user.clj:4)
user$start.invoke (user.clj:4)
user$eval85181.invokeStatic (form-init157753958820776154.clj:2248)
user$eval85181.invoke (form-init157753958820776154.clj:2248)
clojure.lang.Compiler.eval (Compiler.java:6927)
clojure.lang.Compiler.eval (Compiler.java:6890)
clojure.core$eval.invokeStatic (core.clj:3105)
clojure.core$eval.invoke (core.clj:3101)
clojure.main$repl$read_eval_print__7408$fn__7411.invoke (main.clj:240)
clojure.main$repl$read_eval_print__7408.invoke (main.clj:240)
clojure.main$repl$fn__7417.invoke (main.clj:258)
clojure.main$repl.invokeStatic (main.clj:258)
clojure.main$repl.doInvoke (main.clj:174)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.core$apply.invokeStatic (core.clj:646)
clojure.core$apply.invoke (core.clj:641)
refactor_nrepl.ns.slam.hound.regrow$wrap_clojure_repl$fn__43227.doInvoke (regrow.clj:18)
clojure.lang.RestFn.invoke (RestFn.java:1523)
clojure.tools.nrepl.middleware.interruptible_eval$evaluate$fn__22540.invoke (interruptible_eval.clj:87)
clojure.lang.AFn.applyToHelper (AFn.java:152)
clojure.lang.AFn.applyTo (AFn.java:144)
clojure.core$apply.invokeStatic (core.clj:646)
clojure.core$with_bindings_STAR_.invokeStatic (core.clj:1881)
clojure.core$with_bindings_STAR_.doInvoke (core.clj:1881)
clojure.lang.RestFn.invoke (RestFn.java:425)
clojure.tools.nrepl.middleware.interruptible_eval$evaluate.invokeStatic (interruptible_eval.clj:85)
clojure.tools.nrepl.middleware.interruptible_eval$evaluate.invoke (interruptible_eval.clj:55)
clojure.tools.nrepl.middleware.interruptible_eval$interruptible_eval$fn__22585$fn__22588.invoke (interruptible_eval.clj:222)
clojure.tools.nrepl.middleware.interruptible_eval$run_next$fn__22580.invoke (interruptible_eval.clj:190)
clojure.lang.AFn.run (AFn.java:22)
java.util.concurrent.ThreadPoolExecutor.runWorker (:-1)
java.util.concurrent.ThreadPoolExecutor$Worker.run (:-1)
java.lang.Thread.run (:-1)

I'm using Google Blockly Library, which uses GCL

What's wrong?

Here's the project file tree:

app/
  js/
    dependencies/google-blockly/
    compiled/out/
dev/
src/ --> cljs
project.clj

google-blockly:

+---accessible
|   +---libs
|   \---media
+---appengine
+---blocks
+---core
+---demos
|   +---accessible
|   +---blockfactory
|   |   \---workspacefactory
|   +---blockfactory_old
|   +---code
|   |   \---msg
|   +---custom-dialogs
|   +---fixed
|   +---generator
|   +---graph
|   +---headless
|   +---interpreter
|   +---maxBlocks
|   +---mirror
|   +---plane
|   |   +---generated
|   |   +---soy
|   |   \---xlf
|   +---resizable
|   +---rtl
|   +---storage
|   \---toolbox
+---generators
|   +---dart
|   +---javascript
|   +---lua
|   +---php
|   \---python
+---i18n
+---media
+---msg
|   +---js
|   \---json
\---tests
    +---blocks
    +---generators
    +---jsunit
    \---workspace_svg

project.clj

(defproject blocks-editor "0.1.0-SNAPSHOT"
  :description "An editor for visual blocks programming built with ClojureScript + Electron" 
  :dependencies [[org.clojure/clojure "1.8.0"]
                 [org.clojure/clojurescript "1.9.473" :exclusions [org.apache.ant/ant]]
                 [re-frame "0.9.2"]]

  :plugins [[lein-cljsbuild "1.1.5"]
            [lein-externs "0.1.6"]
            [lein-shell "0.5.0"]
            [lein-figwheel "0.5.9" :exclusions [org.clojure/core.cache]]]

  :profiles {:dev {:dependencies [[figwheel "0.5.9"]
                                  [figwheel-sidecar "0.5.9"]
                                  [com.cemerick/piggieback "0.2.1"]
                                  [binaryage/devtools "0.9.2"]]

                   :source-paths ["src" "dev"]}}

  :repl-options {:nrepl-middleware [cemerick.piggieback/wrap-cljs-repl]}

  :hooks [leiningen.cljsbuild] 
  :cljsbuild {:builds
              {:release {:source-paths ["src"]
                         :compiler {:output-to "app/js/compiled/app.js"
                                    :libs ["app/js/dependencies/google-blockly"]
                                    :main blocks-editor.init
                                    :optimizations :advanced}}

               :dev {:source-paths ["src" "dev/cljs/"]
                     :figwheel true
                     :compiler {:output-to "app/js/compiled/app.js"
                                :output-dir "app/js/compiled/out"
                                :main user.cljs
                                :libs ["app/js/dependencies/google-blockly"]

                                :asset-path "js/compiled/out"
                                :source-map-timestamp true
                                :preloads [devtools.preload]
                                :optimizations :none}}}}

  :clean-targets ^{:protect false} ["app/js/compiled"])
Solution

  • I don't know exactly why you're getting that error, but it looks to me like figwheel or lein-cljsbuild is interpreting the relative path you've provided to blockly wrong, and is attempting to interpret it as an absolute one. This kind of problem is often very tricky to resolve, but I have a couple of suggestions:

    1. Try running in a different environment; if you're using cmd, try git bash, or (even better) Bash for Windows. You may well find that this resolves path issues, but obviously it's no good if you like your current environment (I would recommend Bash for Windows for everything clojure, mind).

    2. Try packaging google-blockly in a jar in cljsjs; this is a bit of a pain, but on the flipside you'll be helping everyone else out too! Then you can just add it as a leiningen dependency like normal. Doing this for a google library should be easier than for most, as the difficulty normally comes from creating externs for things that don't work with google's closure compiler.

    3. Check your line endings and file encodings are correct, it's an outside chance but in my experience sometimes this can cause path-related issues.

    4. Check your clojurescript version, there might be an outstanding issue that's affecting you...

    Good luck!