Error loading BuildConfig (Grails 2.1.0) - grails

Question

I've been racking my brain for hours trying to figure this out. Whenever I try to perform any kind of action to my newly created Grails project (with a fresh Grails install), I get this error message:
Error There was an error loading the BuildConfig: ivy pattern must be absolute:
${HOME}/.m2/alpha/repository/[organisation]/[module]/[revision]/[module]-[revision](-
[classifier]).pom (Use --stacktrace to see the full trace)
I can deduce that there's a problem with my installation, but its a fresh install as I said so I'm not sure what could have caused this problem already.
I'm running Win7. Any help would be much appreciated.
EDIT:
grails.servlet.version = "2.5" // Change depending on target container compliance (2.5 or 3.0)
grails.project.class.dir = "target/classes"
grails.project.test.class.dir = "target/test-classes"
grails.project.test.reports.dir = "target/test-reports"
grails.project.target.level = 1.6
grails.project.source.level = 1.6
//grails.project.war.file = "target/${appName}-${appVersion}.war"
grails.project.dependency.resolution = {
// inherit Grails' default dependencies
inherits("global") {
// specify dependency exclusions here; for example, uncomment this to disable ehcache:
// excludes 'ehcache'
}
log "error" // log level of Ivy resolver, either 'error', 'warn', 'info', 'debug' or 'verbose'
checksums true // Whether to verify checksums on resolve
repositories {
inherits true // Whether to inherit repository definitions from plugins
grailsPlugins()
grailsHome()
grailsCentral()
mavenLocal()
mavenCentral()
// uncomment these (or add new ones) to enable remote dependency resolution from public Maven repositories
//mavenRepo "http://snapshots.repository.codehaus.org"
//mavenRepo "http://repository.codehaus.org"
//mavenRepo "http://download.java.net/maven/2/"
//mavenRepo "http://repository.jboss.com/maven2/"
}
dependencies {
// specify dependencies here under either 'build', 'compile', 'runtime', 'test' or 'provided' scopes eg.
// runtime 'mysql:mysql-connector-java:5.1.20'
}
plugins {
runtime ":hibernate:$grailsVersion"
runtime ":jquery:1.7.1"
runtime ":resources:1.1.6"
// Uncomment these (or add new ones) to enable additional resources capabilities
//runtime ":zipped-resources:1.0"
//runtime ":cached-resources:1.0"
//runtime ":yui-minify-resources:0.1.4"
build ":tomcat:$grailsVersion"
runtime ":database-migration:1.1"
compile ':cache:1.0.0.RC1'
}
}

Answer 1

Problem solved for now.
It was a Maven problem, which I didn't consider initially. For some reason, the localRepository tag in /Users/USERNAME/.mp2/settings.xml couldn't resolve the path to HOME, so replacing ${HOME} with the C:/Users/USERNAME did the trick. Strange but it works for now. If anyone has a better solution let me know!

Answer 2

My solution was a little different:
(1) Create a variable that points to your .m2 repository location:
def localMavenRepo = "file://" + new File(System.getProperty('user.home'), '.m2/repository').absolutePath
(2) Create a repository entry:
repositories {
...
mavenRepo name: 'Local', root: localMavenRepo
}

Answer 3

I also got the same problem.
I think it's not Maven problem, it's Apache Ivy's problem.
I think Apache Maven 2/3 works well, it's just that Apache Ivy didn't pick the correct Maven folder. The Apache Ivy didn't expand the ${user.home} as it should.

Answer 4

I solved this by setting my M2_REPO environment variable to an absolute path. On linux:
export M2_HOME=/home/chris/.m2/repository/
On windows you can set environment variables in the System Properties dialog (shortcut to System Properties is WindowsKey+PauseKey). Go to System Properties -> Advanced -> Environment Variables.