Designer 7.1.2 - where is log file?

Hello community,

…where I can find Designer 7.1.2 log file?

When I have executed action “Build and upload for execution” from Designer icon bar and I get following exception:

Error: Build of process "process_name" failed. Please check the log file for more information.
java.lang.NullPointerException
at com.webmethods.process.generator.plugins.parsers.modelerfile.ModelerFileParser.parseTransitions(ModelerFileParser.java:1560)
at com.webmethods.process.generator.plugins.parsers.modelerfile.ModelerFileParser.processSteps(ModelerFileParser.java:303)
at com.webmethods.process.generator.plugins.parsers.modelerfile.ModelerFileParser.parseProcessModel(ModelerFileParser.java:158)
at com.webmethods.process.generator.ProcessModelGenerator.generateModel(ProcessModelGenerator.java:457)
at com.webmethods.process.generator.actions.GenerateProcessAction.run(GenerateProcessAction.java:269)
at com.webmethods.process.generator.actions.GenerateProcessAction.run(GenerateProcessAction.java:89)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:256)
at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:229)
... 28 more

In folder /.metadata the file .log is available, but it does not contains any information about process build’n’upload execution : |

With Best Regards (in last day of year),
GOLAN.

ps:
English is not my native language; please excuse typing error.

Window → Preferences… → webMethods → Process Development → Build and Upload

In section Stack Traces in Build Report we can set the Stack Trace Line Limit, but no sight of log file…

Problem solved. Something goes wrong with xml file of processes. There were transition definitions - but no additional arrows were showed.

So if you see exception like this above, check xml file (that defines process).