我有一个 Grails 1.3.7 项目，但是当我安装 Grails Spock 插件时：我得到了这个：
Installed plugin spock-0.5-groovy-1.7 to location /Users/tiffany/.grails/1.3.7/projects/grails-with-spock/plugins/spock-0.5-groovy-1.7. ...
Resolving plugin JAR dependencies ...
[Fatal Error] settings.xml:19:2: The markup in the document following the root element must be well-formed.
WARNING: Dependencies cannot be resolved for plugin [spock] due to error: The markup in the document following the root element must be well-formed.
Executing spock-0.5-groovy-1.7 plugin post-install script ...
Plugin spock-0.5-groovy-1.7 installed
[delete] Deleting directory /Users/tiffany/Workspace/chrome-webstore/grails-with-spock/target/classes
[delete] Deleting directory /Users/tiffany/.grails/1.3.7/projects/grails-with-spock/plugin-classes
[delete] Deleting directory /Users/tiffany/.grails/1.3.7/projects/grails-with-spock/resources
当我尝试运行一个简单的域 UnitSpec 时，我得到了这个堆栈跟踪：
[Fatal Error] settings.xml:19:2: The markup in the document following the root element must be well-formed.
WARNING: Dependencies cannot be resolved for plugin [spock] due to error: The markup in the document following the root element must be well-formed.
Resolving dependencies...
Dependencies resolved in 1284ms.
Running script /Users/tiffany/dev/grails/scripts/TestApp.groovy
Environment set to test
[mkdir] Created dir: /Users/tiffany/.grails/1.3.7/projects/grails-with-spock/plugin-classes
[groovyc] Compiling 2 source files to /Users/tiffany/.grails/1.3.7/projects/grails-with-spock/plugin-classes
[mkdir] Created dir: /Users/tiffany/Workspace/chrome-webstore/grails-with-spock/target/classes
[groovyc] Compiling 7 source files to /Users/tiffany/Workspace/chrome-webstore/grails-with-spock/target/classes
Error executing script TestApp: java.lang.ClassNotFoundException: grails.plugin.spock.test.GrailsSpecTestType
java.lang.ClassNotFoundException: grails.plugin.spock.test.GrailsSpecTestType
at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:391)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$2$withBuildListeners(Gant.groovy)
at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$2$dispatch(Gant.groovy)
at gant.Gant.invokeMethod(Gant.groovy)
at gant.Gant.executeTargets(Gant.groovy:590)
at gant.Gant.executeTargets(Gant.groovy:589)
Caused by: java.lang.ClassNotFoundException: grails.plugin.spock.test.GrailsSpecTestType
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java_lang_ClassLoader$loadClass.call(Unknown Source)
at _Events$_run_closure1_closure5.doCall(_Events.groovy:18)
at _Events$_run_closure1.doCall(_Events.groovy:24)
at _Events$_run_closure2.doCall(_Events.groovy:30)
at _Events$_run_closure2.doCall(_Events.groovy)
at _Events$_run_closure3.doCall(_Events.groovy:39)
at org.apache.tools.ant.BuildListener$targetStarted.call(Unknown Source)
at TestApp$_run_closure1.doCall(TestApp.groovy:82)
at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
... 10 more
--- Nested Exception ---
java.lang.ClassNotFoundException: grails.plugin.spock.test.GrailsSpecTestType
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java_lang_ClassLoader$loadClass.call(Unknown Source)
at _Events$_run_closure1_closure5.doCall(_Events.groovy:18)
at _Events$_run_closure1.doCall(_Events.groovy:24)
at _Events$_run_closure2.doCall(_Events.groovy:30)
at _Events$_run_closure2.doCall(_Events.groovy)
at _Events$_run_closure3.doCall(_Events.groovy:39)
at org.apache.tools.ant.BuildListener$targetStarted.call(Unknown Source)
at TestApp$_run_closure1.doCall(TestApp.groovy:82)
at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415)
at gant.Gant$_dispatch_closure7.doCall(Gant.groovy)
at gant.Gant.withBuildListeners(Gant.groovy:427)
at gant.Gant.this$2$withBuildListeners(Gant.groovy)
at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source)
at gant.Gant.dispatch(Gant.groovy:415)
at gant.Gant.this$2$dispatch(Gant.groovy)
at gant.Gant.invokeMethod(Gant.groovy)
at gant.Gant.executeTargets(Gant.groovy:590)
at gant.Gant.executeTargets(Gant.groovy:589)
有没有人遇到过这个问题？如果是这样，我该如何解决这个问题？我试过谷歌搜索，但我什么也没得到>.<
我还尝试创建一个新的 Grails 应用程序，只安装了 Spock 插件，没有别的。我得到了完全相同的结果。