Unable to debug Nios Applications under Linux

[Altera_Forum]

Hello, I'm using Nios II EDS 14.0 under Linux (CentOS 6.5) and I actually can't debug any applications: they run fine (by clicking on "run as Nios II Hardware") but they won't debug. I get this message: 

 Launching <configuration name> has encountered a problem. Error creating session ImportError: No module named site  where <configuration_name> is, of course, my debug configuration.  Opening the error log I get this stacktrace  org.eclipse.cdt.debug.mi.core.MIException: ImportError: No module named site  at org.eclipse.cdt.debug.mi.core.MISession.setup(MISession.java:239)  at org.eclipse.cdt.debug.mi.core.MISession.<init>(MISession.java:210)  at org.eclipse.cdt.debug.mi.core.MIPlugin.createMISession0(MIPlugin.java:142)  at org.eclipse.cdt.debug.mi.core.MIPlugin.createSession(MIPlugin.java:471)  at org.eclipse.cdt.debug.mi.core.AbstractGDBCDIDebugger.createGDBSession(AbstractGDBCDIDebugger.java:114)  at org.eclipse.cdt.debug.mi.core.AbstractGDBCDIDebugger.createSession(AbstractGDBCDIDebugger.java:68)  at com.altera.debug.cdi.gdb.plugin.Nios2GdbCdiDebugger.createSession(Nios2GdbCdiDebugger.java:52)  at com.altera.sbt4e.launch.hardware.Nios2HardwareLaunchDelegate.startDebugSession(Nios2HardwareLaunchDelegate.java:502)  at com.altera.sbt4e.launch.hardware.Nios2HardwareLaunchDelegate.launch(Nios2HardwareLaunchDelegate.java:297)  at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:854)  at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)  at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:937)  at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1141)  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)  I tried with my application and also with a simple hello world project. I haven't found any solution to this problem in the forums. Anyone has any idea on how to fix this?  Thanks a lot Giorgio Lopez

[Altera_Forum]

By searching on the internet it seems like the error message is somehow Python-related. But, apart from the fact that I didn't think eclipse/nios2eds used python to work, I didn't manage to find a way to fix the problem

[Altera_Forum]

Same here, any soluction ?

[Altera_Forum]

Hi, 

 I'm having exactly the same issue running it on an Ubuntu 13.10 64bit. The seems to be, that it can't find the python libraries located in <installation dir>/quartus/common/python/lib/site.py . If I set PYTHONPATH to that directory before running eclipse, it says that there's an error in line 173 of site.py - so no real enhancement!  I already launched a service request with the result, that Ubuntu is not a supported OS - just RedHat. Is there somebody that can confirm that NIOS is working under RedHat x64?  Thanks!

[Altera_Forum]

--- Quote Start ---  Hi,  I'm having exactly the same issue running it on an Ubuntu 13.10 64bit. The seems to be, that it can't find the python libraries located in <installation dir>/quartus/common/python/lib/site.py . If I set PYTHONPATH to that directory before running eclipse, it says that there's an error in line 173 of site.py - so no real enhancement!  I already launched a service request with the result, that Ubuntu is not a supported OS - just RedHat. Is there somebody that can confirm that NIOS is working under RedHat x64?  Thanks!  --- Quote End ---    It seems that on Ubuntu 14.04, doing an  export PYTHONPATH=/usr/ fixed the issue  I am running on Ubuntu 12.04 and it doesn't work with this :(  Anyone has a workaround for 12.04 other than migrating to 14.04 ?

[Altera_Forum]

Hi Gjoli, 

 tried export PYTHONPATH=/usr/ but doesn't do the trick.... I'm on Ubuntu 14.04 64bit with Quartus 14.0.2 installed.  Are you sure that it worked for you with the same setup?  Thanks!

[Altera_Forum]

I'm having the same problem. 

Ubuntu 14.04 works fine with 13.0sp1 and 13.1, something broke in 14.0. Anybody have a solution?

[Altera_Forum]

I have the same problem under OpenSUSE 13.1 and CentOS 6.5. My current solution is to copy the nios2-elf-gdb from: 

/opt/altera/13.1/nios2eds/bin/gnu/H-i686-pc-linux-gnu/bin/nios2-elf-gdb to: /opt/altera/14.0/nios2eds/bin/gnu/H-x86_64-pc-linux-gnu/bin/nios2-elf-gdb  Seems to work ok for now.  It would be really nice from Altera, if they officially supported CentOS!