Dumping 'logical_test.png' failed

[GWwangshuo]

error log | 日志或报错信息

$ megflow_run -p ./logical_test/ -c ./logical_test/logical_test.toml --dump
thread '<unnamed>' panicked at 'called `Result::unwrap()` on an `Err` value: No such file or directory (os error 2)', flow-python/src/lib.rs:153:66
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Aborted (core dumped)

context | 编译/运行环境

Ubuntu 20.04.4 LTS 64-bits
python 3.8
cuda11.3

how to reproduce | 复现步骤

1. build Megflow from source
2. cd MegFlow/flow-python/examples
3. megflow_run -p ./logical_test/ -c ./logical_test/logical_test.toml --dump