maixiaohai opened a new issue #646:
URL: https://github.com/apache/rocketmq-externals/issues/646
**BUG REPORT**
1. Please describe the issue you observed:
- What did you do (The steps to reproduce)?
try to compile project rocketmq-iot-bridge, and start the mqttsample
producer and consumer.
- What did you expect to see?
compile success
```
mvn clean package -DskipTests=true
```
and start script success
```
sh bin/server.sh start
sh bin/sample-consumer.sh
sh bin/sample-producer.sh
```
- What did you see instead?
compile error, When I fix it, start script still error.
some error:
**bin/server.sh: 25: bin/server.sh: Syntax error: "(" unexpected**
```sh bin/sample-consumer.sh```
**SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further
details.**
2. Please tell us about your environment:
branch: master
commit 5c48ed165d2e85a01e88b074ac14608a09e85a47
3.more info
after fix
```
sh bin/server.sh start
RocketMQ-IoT-Bridge started ...
zhangxu@zhangxu-OptiPlex-7050:~/workspace/rocketmq-externals/rocketmq-iot-bridge$
sh bin/sample-consumer.sh
26 [main] INFO org.apache.rocketmq.iot.example.MqttSampleConsumer -
Connecting to broker: tcp://127.0.0.1:1883
179 [main] INFO org.apache.rocketmq.iot.example.MqttSampleConsumer -
Connected
```
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