Dear rifidi-developers,
I had followed the "LLRP HelloWorld Quick Start Guide" to steup the
software and run the LLRPHelloWorldClient.class.
I get the error message as following :
D:\EPCGlobal\Rifidi software\LLRPHelloWorld>java -cp llrp.jar;. LLR
ldClient 127.0.0.1 10002
Client IP and Port at 127.0.0.1:10002
Exception in thread "main" java.lang.NullPointerException
at LLRPHelloWorldClient.main(LLRPHelloWorldClient.java:162)
How can i resolve the error ?
SETUP
1) Configure LLRP Virtual Reader in Rifidi 1.4 IDE following Configuring a LLRP
Virtual Reader document (Document
Name - Brian to create)
2) Configure the LLRP Hello World Client
a) Open up a terminal and 'cd' to the LLRPHelloWorld directory
b) type 'javac -cp llrp.jar LLRPHelloWorldClient.java' to compile the code
c) type 'java -cp llrp.jar:. LLRPHelloWorldClient 127.0.0.1 10002' if you are
on linux or
'java -cp llrp.jar;. LLRPHelloWorldClient 127.0.0.1 10002' if you are on windows
to run the code. Note that you will need to set the IP and port to the values
that you used in the wizard in step 1.I
I used the 'netstat -a' command to resolve the problem. I found that LLRP
reader didn`t listen at port '10002'.
Regards,
Jan-Yie Liang
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