DEBUG = myapp：* npm开始无法使用流程生成器工作

Question

DEBUG = myapp：* npm开始无法使用流程生成器

Its shows like 
error=2, No such file or directory. Stacktrace follows:
java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.<init>(UNIXProcess.java:135)
at java.lang.ProcessImpl.start(ProcessImpl.java:130)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1021)