Datax-Web运行报错“/usr/bin/python: can't find '__main__' module in ''”

vi /usr/local/datax-web/modules/datax-executor/bin/datax-executor.sh 
修改JAVA_OPTS=${JAVA_OPTS}" -Dserver.port="${SERVER_PORT}" -Ddata.path="${DATA_PATH}" -Dexecutor.port="${EXECUTOR_PORT}" -Djson.path="${JSON_PATH}" -Dpython.path="${PYTHON_PATH}" -Ddatax.admin.port="${DATAX_ADMIN_PORT} 
为：JAVA_OPTS=${JAVA_OPTS}" -Dserver.port="${SERVER_PORT}" -Ddata.path="${DATA_PATH}" -Dexecutor.port="${EXECUTOR_PORT}" -Djson.path="${JSON_PATH}" -Dpython.path="/usr/local/datax/bin/datax.py" -Ddatax.admin.port="${DATAX_ADMIN_PORT}   

-- 或者 
vi /usr/local/datax-web/modules/datax-executor/bin/env.properties PYTHON_PATH=/usr/local/datax/bin/datax.py   

-- 然后重启 
/usr/local/datax-web/bin/stop-all.sh 
/usr/local/datax-web/bin/start-all.sh