ERROR:root:calculation failed: -32601: Does not understand: calculate

Question

Hi 

I got this message: ERROR:root:calculation failed: -32601: Does not understand: calculate when I run this (after connecting to IPC server to OpenLCA 2.0.3): 

setup = olca.CalculationSetup()

setup.calculation_type = olca.CalculationType.UPSTREAM_ANALYSIS

setup.product_system = olca.ref(

    olca.ProductSystem,

    '5db4432c-2407-4ceb-bf26-886975ef8ed0'

)

setup.impact_method = olca.ref(

    olca.ImpactMethod,

    '8280f30d-2cdd-3451-b0d2-2e439f836b1e'

)

setup.amount = 1.0

result = client.calculate(setup) 

I tried to install Olca through: 

pip install -U olca-ipc

but I got this message when I run the same code:

ModuleNotFoundError: No module named 'olca'

So I am using Olca 0.0.12:

pip install olca-ipc==0.0.12

Any ideas what is the problem ?

Thanks in advance !

Answer 1

Hi,

Are you using the IPC server with openLCA? If yes, what version of openLCA are you using?

I would advise to use the latest version of openLCA with the latest version of olca-ipc. Did you check the documentation (https://greendelta.github.io/openLCA-ApiDoc/ipc/)?

Cheers,

François

Comments

Hi François,

Thanks for your answer !
Yes, I am using IPC server and the latest version of openLCA 2.1.0 and following the documentation, but still not working.

---

If you are using openLCA 2.1.0 then it is best to use the latest version of `olca-ipc` and `olca-schema`.
Then, if you are using the latest version of `olca-ipc`, there is no `calculation_type` field for a `CalculationSetup` object (see https://greendelta.github.io/olca-schema/classes/CalculationSetup.html?highlight=calcula#python-class-stub).

For example, does the following work?

```python
import olca_ipc as ipc
import olca_schema as o

# create a calculation setup
setup = o.CalculationSetup(
    target=o.Ref(
        ref_type=o.RefType.ProductSystem,
        id="5db4432c-2407-4ceb-bf26-886975ef8ed0'",
    ),
    impact_method=o.Ref(id="8280f30d-2cdd-3451-b0d2-2e439f836b1e'"),
)

# run a calculation
client = ipc.Client()
result: ipc.Result = client.calculate(setup)
```

---

Yess it works. Cause 'calculation_type' is included here in the documentation:
https://greendelta.github.io/olca-ipc.py/olca/schema.html#olca.schema.CalculationSetup
Thanks for your answer :)

---

This is the documentation for 0.0.12 only. I am sorry that it was not clear.