try this

Author: CamDavidsonPilon

pioreactorui/tasks.py

@@ -76,7 +76,7 @@ def pio_run(*args: str, env: dict[str, str] = {}) -> bool:
 
     env = {k: v for k, v in (env or {}).items() if k in ALLOWED_ENV}
     logger.info(f"Executing `{join(command)}`, {env=}")
-    run(command, env=dict(os.environ) | env, capture_output=True, text=True)
+    result = run(command, env=dict(os.environ) | env, capture_output=True, text=True)
 
     if result.returncode != 0:
         raise Exception(result.stderr.strip())