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RSS订阅原创 Arch linux 安装Qt5
安装软件包、文档包:sudo pacman -S qt5-base qt5-doc安装QTCreatorsudo pacman -S qtcreator 测试代码 helloworld.cpp：#include <QApplication>#include <QLabel>int main(int argc, char **argv){ ...
2018-10-14 11:20:55
5370
原创 树莓派安装Arch linux，opencv无法调用官方摄像头
添加摄像头：在/boot/config.txt文件添加：start_file=start_x.elffixup_file=fixup_x.datdisable_camera_led=1重启树莓派。opencv调用报错：错误：Error: Assertion failed (scn == 3 || scn == 4) in cvtColor, file /buil...
2018-06-26 00:27:08
3740
原创 from pip._vendor.requests.exceptions import SSLError
pip install XXXTraceback (most recent call last): File "/usr/bin/pip", line 11, in <module> load_entry_point('pip==10.0.1', 'console_scripts', 'pip')() File "/usr/lib/python3.6/site-package...
2018-06-24 23:41:39
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原创 many corrupted packages/invalid PGP signatures for aarch64
树莓派 升级软件包 pacman -Syu 后安装（任意？）软件出现错误error: signature from "Arch Linux ARM Build System <builder@archlinuxarm.org>" is unknown trust解决：sudo pacman-key --initsudo pacman-key --populate archlinuxar...
2018-06-23 12:48:30
451
原创 windows 飞控 PX4代码 编译报错 /bin/sh python：command not found
1、/bin/sh python：command not found安装python 并添加路径2、ModuleNotFoundError: No module named 'future'“future”模块未安装升级PIP到最新板python -m pip install --upgrade pip安装futurepip install future3、/bin/sh: arm-none-ea...
2018-05-11 11:34:20
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原创 图像滤波函数 filter2D 使用错误
error: ‘filter2D’ was not declared in this scope错误原因：google： 'filter2D' : is not a member of 'cv' 没有添加对应的库：#include<opencv2/imgproc/imgproc.hpp>
2018-05-07 23:32:08
1048
原创 python 3.6.2 TypeError: 'range' object doesn't support item deletion
trainingSet = range(num)del(trainingSet(n))TypeError: 'range' object doesn't support item deletiontrainingSet = list(range(num))del(trainingSet(n))
2017-12-06 22:56:05
357
原创 python3.6 TypeError: 'dict_keys' object does not support indexing
TypeError: 'dict_keys' object does not support indexing
2017-11-07 21:26:48
7252
原创 arch linux python3.6.2 import matplotlib.pyplot as plt 报错
arch linux python3.6.2 import matplotlib.pyplot as plt 报错
2017-10-08 11:35:01
1330
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