Exporting error and empty .js file

Hello! I'm trying to export an application from Pharo to Amber, and everything works find except when it has to write the .js file. It give me the following error + and empty .js file: String>>streamContents: a BlockClosure>>value: a Exporter>>exportPackageDefinitionOf:on: nil does not understand #name node.js:134 throw e; // process.nextTick error, or 'error' event on first tick ^ Error: First argument needs to be a number, array or string. at new Buffer (buffer.js:156:15) at Object.writeFileSync (fs.js:485:12) at /home/projects/Amber/Amber/mySrc/amberc.0ZLAPg/compiler.js:18557:8 at Array.forEach (native) at Object.<anonymous> (/home/projects/Amber/Amber/mySrc/amberc.0ZLAPg/compiler.js:18549:11) at Module._compile (module.js:402:26) at Object..js (module.js:408:10) at Module.load (module.js:334:31) at Function._load (module.js:293:12) at Array.<anonymous> (module.js:421:10) Done. Any idea? Thanks, Vanessa. -- View this message in context: http://forum.world.st/Exporting-error-and-empty-js-file-tp4630733.html Sent from the Magritte, Pier and Related Tools mailing list archive at Nabble.com.