Undefined symbol when running scope in emulator

[Psirus]

I'm trying to run the template scope in the emulator of the Ubuntu SDK in 15.04. The scope builds just fine, but when I try to run it in the emulator, it gives me the following error:

scoperunner: unity::ResourceException: Cannot load scope schnasni.username_schnasni; tried in the following locations:
/opt/click.ubuntu.com/schnasni.username/0.1/schnasni/i386-linux-gnu/libschnasni.username_schnasni.so
/opt/click.ubuntu.com/schnasni.username/0.1/schnasni/i386-linux-gnu/schnasni.username_schnasni.so
/opt/click.ubuntu.com/schnasni.username/0.1/schnasni/i386-linux-gnu/scope.so
/opt/click.ubuntu.com/schnasni.username/0.1/schnasni/libschnasni.username_schnasni.so
/opt/click.ubuntu.com/schnasni.username/0.1/schnasni/schnasni.username_schnasni.so
/opt/click.ubuntu.com/schnasni.username/0.1/schnasni/scope.so
Exception history:
    Exception #1:
        unity::ResourceException: /opt/click.ubuntu.com/schnasni.username/0.1/schnasni/i386-linux-gnu/libschnasni.username_schnasni.so: cannot open shared object file: No such file or directory
    Exception #2:
        unity::ResourceException: /opt/click.ubuntu.com/schnasni.username/0.1/schnasni/i386-linux-gnu/schnasni.username_schnasni.so: cannot open shared object file: No such file or directory
    Exception #3:
        unity::ResourceException: /opt/click.ubuntu.com/schnasni.username/0.1/schnasni/i386-linux-gnu/scope.so: cannot open shared object file: No such file or directory
    Exception #4:
        unity::ResourceException: /opt/click.ubuntu.com/schnasni.username/0.1/schnasni/libschnasni.username_schnasni.so: undefined symbol: _ZN5unity6scopes9ScopeBase22activate_result_actionERKNS0_6ResultERKNS0_14ActionMetadataERKSs
    Exception #5:
        unity::ResourceException: /opt/click.ubuntu.com/schnasni.username/0.1/schnasni/schnasni.username_schnasni.so: cannot open shared object file: No such file or directory
    Exception #6:
        unity::ResourceException: /opt/click.ubuntu.com/schnasni.username/0.1/schnasni/scope.so: cannot open shared object file: No such file or directory

It searches for the file in 6 directories, and does not find it in 5 of these, which is expected I think. But what does

undefined symbol: _ZN5unity6scopes9ScopeBase22activate_result_actionERKNS0_6ResultERKNS0_14ActionMetadataERKS

mean and how can I resolve it?

[Michi Henning (michihenning)]

This looks like the scopes API lib used by the emulator is out of date?

[Marcus Tomlinson (marcustomlinson)]

Michi's right, the undefined symbol is really the culprit here, so yeah, the scopes API lib is out of date on the emulator. To resolve this, I suspect it'd be just a matter of navigating to the system settings on the emulator and performing all updates.

The reason you see all that other noise about not finding other libs is because once the scoperunner runs into an issue with one lib (libschnasni.username_schnasni.so in this case), it then attempts to find alternatives that it may have more luck with.

[Michi Henning (michihenning)]

> The reason you see all that other noise about not finding other libs is because once the scoperunner runs into an issue with one lib (libschnasni.username_schnasni.so in this case), it then attempts to find alternatives that it may have more luck with.

I did this after Michal applied a lot of pressure to allow short names for scope libraries. Originally, you had to use the full-qualified scope ID with a .so suffix. In effect, this has created aliasing for the possible .so names, meaning that the scope loader has to look for a whole bunch of possible names.

Next time, I'll be resisting that kind of suggestion a lot more. In the long run, I think it creates more trouble than it's worth.

[Michi Henning (michihenning)]

This isn't a scopes-api problem. Anyone know what the correct project for the emulator is, so I can re-assign?

[Marcus Tomlinson (marcustomlinson)]

AFAIK the emulator lives in the phablet-tools project. Adding phablet-tools to affected packages.

[Pat McGowan (pat-mcgowan)]

I assume this is ok with the latest emulator but lets verify