`/root/archive.omex` is not a valid COMBINE/OMEX archive.
- The SED-ML file at location `sed-ml/periodic-stimulus.xml` is invalid.
- Data generator `dgTime` is invalid.
- Variable `time` is invalid.
- One or more namespaces required for target `/cellml:model/cellml:component[@name='time']/cellml:variable[@name='time']` are not defined. Only the following namespaces are defined for the target: `math`.
- Data generator `dgVm` is invalid.
- Variable `Vm` is invalid.
- One or more namespaces required for target `/cellml:model/cellml:component[@name='outputs']/cellml:variable[@name='minus_V']` are not defined. Only the following namespaces are defined for the target: `math`.
- Data generator `dgINa` is invalid.
- Variable `INa` is invalid.
- One or more namespaces required for target `/cellml:model/cellml:component[@name='outputs']/cellml:variable[@name='INa']` are not defined. Only the following namespaces are defined for the target: `math`.
- Data generator `dgIK` is invalid.
- Variable `IK` is invalid.
- One or more namespaces required for target `/cellml:model/cellml:component[@name='outputs']/cellml:variable[@name='IK']` are not defined. Only the following namespaces are defined for the target: `math`.
- Data generator `dgIleak` is invalid.
- Variable `Ileak` is invalid.
- One or more namespaces required for target `/cellml:model/cellml:component[@name='outputs']/cellml:variable[@name='Ileak']` are not defined. Only the following namespaces are defined for the target: `math`