Play框架在啓動時掛起：「從」加載項目定義「

Question

我剛剛開始使用Play Framework。我已經下載並安裝了遊戲並創建了一個示例Java應用程序。當我嘗試在應用程序目錄中啓動播放控制檯時，它會在「加載項目定義」處掛起。

PS C:\dev\play\javatest> play.bat 
Getting org.scala-sbt sbt_2.9.1 0.11.3 ... 
:: retrieving :: org.scala-sbt#boot-app 
     confs: [default] 
     37 artifacts copied, 0 already retrieved (7245kB/283ms) 
[info] Loading project definition from C:\dev\play\myFirstApp\project 

當我嘗試運行的應用程序的Scala我得到一個關於它等待鎖消息：

PS C:\dev\play\scalatest> play 
[info] Loading project definition from C:\dev\play\test1\project 
Waiting for lock on C:\lib\play\repository\.sbt.ivy.lock to be available... 

運行Windows 7，JDK 1.7.0_05和播放框架2.0.2。有任何想法嗎？

Answer 1

我剛剛在Play 2上體驗了這個，結果發現它並沒有真正懸掛，只是拉着一個maven並下載了互聯網。爲了驗證這一點是相同的行爲，你正在經歷編輯project/plugins.sbt並替換：

logLevel := Level.Warn 

與

logLevel := Level.Debug 

（雖然我建立在OSX我想你會體驗到在Windows類似的輸出。）

Answer 2

嘗試放棄構建，刪除引用的鎖定文件，然後再次執行「播放運行」。

Answer 3

只需添加到現有的在這裏回答，

我也看到這種現象後，我從玩2.2X升級到播放2.3.x版本（見MigrationGuide）

我調試如下所示。

在Linux上，跳轉到你的項目文件夾，然後：

$ bash -x `which sbt` 
.... OUTPUT SKIPPED.... 
++ (( 128 < 512 )) 
++ local 'common_opts=-Xms1024m -Xmx1024m -XX:ReservedCodeCacheSize=128m' 
++ [[ 1.7.0_55 < 1.8 ]] 
++ local perm=256 
++ echo '-Xms1024m -Xmx1024m -XX:ReservedCodeCacheSize=128m -XX:MaxPermSize=256m' 
+ execRunner java -Xms1024m -Xmx1024m -XX:ReservedCodeCacheSize=128m -XX:MaxPermSize=256m -jar /usr/share/sbt-launcher-packaging/bin/sbt-launch.jar 
+ [[ -n '' ]] 
+ [[ -n '' ]] 
+ java -Xms1024m -Xmx1024m -XX:ReservedCodeCacheSize=128m -XX:MaxPermSize=256m -jar /usr/share/sbt-launcher-packaging/bin/sbt-launch.jar 

記下在最後一行的命令，取消當前進程Ctrl+C，並執行它加入-verbose選項java：

java -verbose -Xms1024m -Xmx1024m -XX:ReservedCodeCacheSize=128m -XX:MaxPermSize=256m -jar /usr/share/sbt-launcher-packaging/bin/sbt-launch.jar 

最後我還在project/plugins.sbt上加了logLevel := Level.Debug。

然而，它不斷給輸出是這樣的：

.... OUTPUT SKIPPED.... 
info] [SUCCESSFUL ] org.apache.maven.doxia#doxia-sink-api;1.1!doxia-sink-api.jar (2065ms) 
[debug]   tried http://repo.typesafe.com/typesafe/ivy-releases/org.apache.maven.doxia/doxia-logging-api/1.1/jars/doxia-logging-api.jar 
[debug] CLIENT ERROR: Not Found url=http://repo.typesafe.com/typesafe/ivy-releases/org.apache.maven.doxia/doxia-logging-api/1.1/jars/doxia-logging-api.jar 
[debug]   tried http://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.apache.maven.doxia/doxia-logging-api/1.1/jars/doxia-logging-api.jar 
[debug] CLIENT ERROR: Not Found url=http://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.apache.maven.doxia/doxia-logging-api/1.1/jars/doxia-logging-api.jar 
[debug]   tried /home/saleem/.ivy2/local/org.apache.maven.doxia/doxia-logging-api/1.1/jars/doxia-logging-api.jar 
[debug]   tried http://repo1.maven.org/maven2/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar 
[info] downloading http://repo1.maven.org/maven2/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar ... 
[debug]  public: downloading http://repo1.maven.org/maven2/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar 
[debug]  public: downloading http://repo1.maven.org/maven2/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar.sha1 
[debug] sha1 OK for http://repo1.maven.org/maven2/org/apache/maven/doxia/doxia-logging-api/1.1/doxia-logging-api-1.1.jar 
[info] [SUCCESSFUL ] org.apache.maven.doxia#doxia-logging-api;1.1!doxia-logging-api.jar (3997ms) 
[debug]   tried http://repo.typesafe.com/typesafe/ivy-releases/org.apache.maven/maven-plugin-registry/2.2.1/jars/maven-plugin-registry.jar 
[debug] CLIENT ERROR: Not Found url=http://repo.typesafe.com/typesafe/ivy-releases/org.apache.maven/maven-plugin-registry/2.2.1/jars/maven-plugin-registry.jar 
[debug]   tried http://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.apache.maven/maven-plugin-registry/2.2.1/jars/maven-plugin-registry.jar 
[debug] CLIENT ERROR: Not Found url=http://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.apache.maven/maven-plugin-registry/2.2.1/jars/maven-plugin-registry.jar 
[debug]   tried /home/saleem/.ivy2/local/org.apache.maven/maven-plugin-registry/2.2.1/jars/maven-plugin-registry.jar 
[debug]   tried http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-registry/2.2.1/maven-plugin-registry-2.2.1.jar 
[info] downloading http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-registry/2.2.1/maven-plugin-registry-2.2.1.jar ... 
[debug]  public: downloading http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-registry/2.2.1/maven-plugin-registry-2.2.1.jar 
[debug]  public: downloading http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-registry/2.2.1/maven-plugin-registry-2.2.1.jar.sha1 
[debug] sha1 OK for http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-registry/2.2.1/maven-plugin-registry-2.2.1.jar 
[info] [SUCCESSFUL ] org.apache.maven#maven-plugin-registry;2.2.1!maven-plugin-registry.jar (2025ms) 
[debug]   tried http://repo.typesafe.com/typesafe/ivy-releases/backport-util-concurrent/backport-util-concurrent/3.1/jars/backport-util-concurrent.jar 
[debug] CLIENT ERROR: Not Found url=http://repo.typesafe.com/typesafe/ivy-releases/backport-util-concurrent/backport-util-concurrent/3.1/jars/backport-util-concurrent.jar 
[debug]   tried http://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/backport-util-concurrent/backport-util-concurrent/3.1/jars/backport-util-concurrent.jar 
[debug] CLIENT ERROR: Not Found url=http://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/backport-util-concurrent/backport-util-concurrent/3.1/jars/backport-util-concurrent.jar 
[debug]   tried /home/saleem/.ivy2/local/backport-util-concurrent/backport-util-concurrent/3.1/jars/backport-util-concurrent.jar 
[debug]   tried http://repo1.maven.org/maven2/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar 
[info] downloading http://repo1.maven.org/maven2/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar ... 
[debug]  public: downloading http://repo1.maven.org/maven2/backport-util-concurrent/backport-util-concurrent/3.1/backport-util-concurrent-3.1.jar 
.... OUTPUT SKIPPED.... 

似乎有被下載太多的罐子。我現在使用的是Typesafe Activator的離線版本（356MB下載here），而且速度非常快！