Error occurs when debugging rust program with vscode (windows only) - visual-studio-code

Question

I am trying to debug the code below with vscode, but an error occurs.
Development environment
Microsoft Windows 10 Home 10.0.19042 Build 19042
rustc 1.49.0 (e1884a8e3 2020-12-29)
Vscode 1.54.3
CodeLLDB v1.6.1
// Cargo.toml
//[dependencies]
//datafusion = "3.0.0"
//arrow = "3.0.0"
//tokio = { version = "0.2", features = ["macros", "blocking", "rt-core", "rt-threaded", "sync"] }
use std::time::{Duration, Instant};
use arrow::util::pretty;
use datafusion::error::Result;
use datafusion::prelude::*;
/// This example demonstrates executing a simple query against an Arrow data source (CSV) and
/// fetching results
#[tokio::main]
async fn main() -> Result<()> {
println!("======== Start Program ========");
let start = Instant::now();
// let res_path = r"/root/workspace/project/hello_arrow/res/sample_01.csv";
// http://insideairbnb.com/get-the-data.html
// listing_id,id,date,reviewer_id,reviewer_name,comments
// Boston, Massachusetts, United States
let res_path = r"D:\workspace\vscode\arrow_rust\res\review.01.csv";
// create local execution context
let mut ctx = ExecutionContext::new();
// register csv file with the execution context
ctx.register_csv("datatable_01", res_path, CsvReadOptions::new())?;
// execute the query
let sql = "SELECT count(id) from datatable_01";
let df = ctx.sql(sql)?;
let results = df.collect().await?;
// print the results
pretty::print_batches(&results)?;
let duration = start.elapsed();
println!("Time elapsed in expensive_function() is: {:?}", duration);
println!("======== End Program ========");
Ok(())
}
Error Code
configuration: {
type: 'lldb',
request: 'launch',
name: 'Debug Window',
program: '${workspaceRoot}/target/debug/arrow_rust.exe',
args: [],
cwd: '${workspaceRoot}',
sourceLanguages: [ 'rust' ],
__configurationTarget: 5,
relativePathBase: 'd:\\workspace\\vscode\\arrow_rust'
}
Listening on port 8541
error: arrow_rust.exe :: Class 'arrow::datatypes::DataType' has a member '__0' of type 'alloc::vec::Vec<arrow::datatypes::Field>' which does not have a complete definition.
Debug adapter exit code=3221225620, signal=null.
The program runs normally. Debugging fine on Linux for the same code.
Is there any other way to debug on Windows?

Answer 1

I have the same problem.
Inspired by the link below, I have solved it.
https://github.com/vadimcn/vscode-lldb/issues/410#issuecomment-786791796
The reason is that I have installed NVIDIA Nsight.
As shown below, the msdia140.dll for Nsight has been loaded by codelldb.
Run PowerShell as administrator. Execute the command below to register the component. Then codelldb works.
regsvr32.exe C:\Users\【user name】\.vscode\extensions\vadimcn.vscode-lldb-1.6.8\lldb\bin\msdia140.dll
Update
For newer versions, the DLL has moved to another folder:
regsvr32.exe C:\Users\[user name]\.vscode\extensions\vadimcn.vscode-lldb-1.8.1\adapter\msdia140.dll