sampler_test/transpile_test aborted with No such file or directory error.

[ohtanim]

Environment

• Qiskit IBM Runtime C version: latest code available in git
• Python version: 3.12.9
• Operating system: 26.1（25B78）, Rocky Linux release 9.6 (Blue Onyx), RedHat Enterprise Linux 9

What is happening?

(pyenv) [root@c1 build]# export QISKIT_IBM_TOKEN=<my API token>
(pyenv) [root@c1 build]# export QISKIT_IBM_INSTANCE=<my instance>
(pyenv) [root@c1 build]# ./sampler_test 

thread '<unnamed>' (5819) panicked at crates/client/src/service.rs:245:38:
called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 309163264, aborting
Aborted (core dumped)
(pyenv) [root@c1 build]# ./transpile_test 

thread '<unnamed>' (5820) panicked at crates/client/src/service.rs:245:38:
called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 567476416, aborting
Aborted (core dumped)

How can we reproduce the issue?

• Build samples with qiskit-ibm-runtime-c
• Follow README and set QISKIT_IBM_TOKEN & QISKIT_IBM_INSTANCE environment variables
• Run sampler_test or transpiler_test

What should happen?

Samples should work with no errors.

Any suggestions?

It seems that $HOME/.qiskit/qiskit-ibm.json file is required to work with the qiskit-ibm-runtime-c. I would recommend to update README if this is expected behavior.

(QRMI works with environment variables)

[CedrickMwamba]

Hi @ohtanim ,
Is your request still relevant?

[ohtanim]

Hi @ohtanim , Is your request still relevant?

Yes. I tested again today.

[root@login build]# export QISKIT_IBM_TOKEN=<my token>
[root@login build]# export QISKIT_IBM_INSTANCE=<my instance>
[root@login build]# ./sampler_test 

thread '<unnamed>' (57154) panicked at crates/client/src/service.rs:244:38:
called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 341624112, aborting
Aborted (core dumped)

[CedrickMwamba]

Hi @ohtanim , Is your request still relevant?

Yes. I tested again today.

[root@login build]# export QISKIT_IBM_TOKEN=<my token>
[root@login build]# export QISKIT_IBM_INSTANCE=<my instance>
[root@login build]# ./sampler_test 

thread '<unnamed>' (57154) panicked at crates/client/src/service.rs:244:38:
called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 341624112, aborting
Aborted (core dumped)

Okay thank you. On it.