Archive-engine does not have sufficient permissions to export the .xml file

[LONG FENG via Tech-talk <tech-talk at aps.anl.gov>]

Hi all,

When I execute the command archive-engine -engine Demo -export Demo.xml, a permission issue occurs, as shown below:  

2024-11-19 20:46:58 INFO [org.csstudio.archive] Archive Engine 4.0.0 (PID 6791)
2024-11-19 20:46:58 INFO [org.csstudio.archive] Engine Configuration: Demo
2024-11-19 20:46:58 INFO [org.csstudio.archive] Archive Configuration 'Demo'
2024-11-19 20:46:58 INFO [org.csstudio.archive] RDB: jdbc:mysql://localhost/archive?rewriteBatchedStatements=true
2024-11-19 20:46:58 INFO [org.csstudio.archive] User: archive
2024-11-19 20:46:58 INFO [org.csstudio.archive] ID: 1
2024-11-19 20:46:58 INFO [org.csstudio.archive] Description: Demo Engine
2024-11-19 20:46:58 INFO [org.csstudio.archive] Web Server : http://localhost:4812
2024-11-19 20:46:58 INFO [org.csstudio.archive] Group 'Demo' (1)
2024-11-19 20:46:58 INFO [org.csstudio.archive] Channel 'freddy' (3), Monitor @ min. period 0.1 sec
2024-11-19 20:46:58 INFO [org.csstudio.archive] Channel 'sim://noiseWaveform(0,10,100,10)' (2), Monitor @ min. period 0.1 sec
2024-11-19 20:46:58 INFO [org.csstudio.archive] Channel 'sim://sine(0, 10, 50, 0.1)' (1), Monitor [threshold 1.0] @ min. period 0.1 sec
2024-11-19 20:46:58 INFO [org.csstudio.archive] Saving configuration to Demo.xml
Exception in thread "main" java.io.FileNotFoundException: Demo.xml (Permission denied)
        at java.base/java.io.FileOutputStream.open0(Native Method)
        at java.base/java.io.FileOutputStream.open(FileOutputStream.java:293)
        at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:235)
        at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:184)
        at org.csstudio.archive.engine.config.XMLConfig.write(XMLConfig.java:53)
        at org.csstudio.archive.Engine.main(Engine.java:343)

What could be causing this problem?

Thanks！

Feng