Ant Build in Eclipse results in ${src.dir} and I don't know how to resolve it

Issue

So after adding a new project to my Eclipse environment through Ant, the source folder just shows ${src.dir} and a small warning sign. The only warning I find in the problems tab is

Classpath variable 'JRE_LIB' in project '<projectname>' is deprecated: Use the JRE System Library instead

We have no idea how to resolve this.

We've tried compiling the project through cmd ant, which first resulted in a charset error because of UTF-8 (project is encoded in Latin-1) but we managed to fix that, ant can compile it in cmd.

We have also tried changing Eclipse's charset to Latin-1, which didn't work either.

Solution

Your ANT build file uses the property ${src.dir} that is either not defined at all or it uses that property in a target that does not depend on the target that defines said property.

Either ensure that <property name="src.dir" .../> is defined in your ANT build file and that all targets that use the property depend on the target that defines the property or (if you do not want to specify a src.dir property in your build file) invoke ANT with a -Dsrc.dir=... command line option. In the latter case you should add a condition to your build file that fails the build if the src.dir property is not set.

See the ANT manual for more information.

Answered By - Thomas Behr