Q:

SBT - bad revision found

I get an error:

expected='2.0.0-SNAPSHOT found='${jpacontainer.version}'

Vaadin snapshot repository: bad revision found in
http://oss.sonatype.org/content/repositories/vaadin-snapshots/com/vaadin/addon/jpacontainer-addon-agpl-3.0/2.0.0-SNAPSHOT/jpacontainer-addon-agpl-3.0-2.0.0-20120117.082939-16.pom:
expected='2.0.0-SNAPSHOT found='${jpacontainer.version}'

while resolving dependency
val vaadinJPA = "com.vaadin.addon" % "jpacontainer-addon-agpl-3.0" % "2.0.0-SNAPSHOT"

Do you know how to fix this?
This is the POM: https://oss.sonatype.org/content/repositories/vaadin-snapshots/com/vaadin/addon/jpacontainer-addon-agpl-3.0/2.0.0-SNAPSHOT/jpacontainer-addon-agpl-3.0-2.0.0-20120117.082939-16.pom

A:

The POM file is invalid. The POM is a module's meta data file and should list the correct version. This is what is causing your problems.
Snapshots have a tendency to be unstable (not always a good idea to use them).
Options?

Use a different snapshot module version. 
If you really need this particular jar then I'd advise downloading it directly as follows:
https://oss.sonatype.org/content/repositories/vaadin-snapshots/com/vaadin/addon/jpacontainer-addon-agpl-3.0/2.0.0-SNAPSHOT/jpacontainer-addon-agpl-3.0-2.0.0-20120117.082939-16.jar

Update
That module is plain broken :-( 
The jar can be found when browsing the file storage as follows:
https://oss.sonatype.org/index.html#view-repositories;vaadin-snapshots~browsestorage~/com/vaadin/addon/jpacontainer-addon-agpl-3.0/2.0.0-SNAPSHOT/jpacontainer-addon-agpl-3.0-2.0.0-20120117.082939-16.jar
This explains why the following dependency declaration in Maven might work:
<dependency>
  <groupId>com.vaadin.addon</groupId>
  <artifactId>jpacontainer-addon-agpl-3.0</artifactId>
  <version>2.0.0-SNAPSHOT</version>
</dependency>

Without a proper POM the Nexus index will not be updated properly 
https://oss.sonatype.org/index.html#nexus-search;gav~~jpacontainer-addon-agpl-3.0~2.0.0-SNAPSHOT~~
As you can see the jar is missing... So jar is present, repository index is unreliable

