weixin_46266683: cargo install maturin安装到一半报错error[E0425]: cannot find value `ENOATTR` in this scope --> /data/data/com.termux/files/home/.cargo/registry/src/index.crates.io-6f17d22bba15001f/xattr-1.1.2/src/util.rs:12:37 | 12 | if e.raw_os_error() == Some(ENOATTR) { | ^^^^^^^ not found in this scope For more information about this error, try `rustc --explain E0425`. error: could not compile `xattr` (lib) due to previous error warning: build failed, waiting for other jobs to finish... error: failed to compile `maturin v1.4.0`, intermediate artifacts can be found at `/data/data/com.termux/files/usr/tmp/cargo-installbc8SCy`. To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.为什么

G森森: 一定要先填好class_name，否则报错

W_DevilMayCry: TextField里面有一个TextStyle你输入的内容的样式要在这里设置，placeholder的提示信息的样式也要在Text()文本里单独设置。刚开始学，这玩意太灵活也真的好恶心

weixin-maizhilo: 大神，dataset_path = "path_to_dataset" 这里的数据结构是怎么样的，麻烦您详细说明下哈，例如：放一些图片和dlib工具标注后的xml文件

weixin-maizhilo: 大佬，训练时提示：if it contains a single sample.".format(array)) ValueError: Expected 2D array, got 1D array instead: array=[]. Reshape your data either using array.reshape(-1, 1) if your data has a single feature or array.reshape(1, -1) if it contains a single sample 烦请大佬指导下是什么原因