原创 Arch linux 安裝Qt5
安裝軟件包、文檔包: sudo pacman -S qt5-base qt5-doc 安裝QTCreator sudo pacman -S qtcreator 測試代碼 helloworld.cpp： #include <QAppl
2018-10-15 05:45:23
12
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==
2018-08-22 12:16:01
原创 many corrupted packages/invalid PGP signatures for aarch64
樹莓派 升級軟件包 pacman -Syu 後安裝（任意？）軟件出現錯誤error: signature from "Arch Linux ARM Build System <[email protected]>" is u
2018-08-22 12:15:55
5
原创 圖像濾波函數 filter2D 使用錯誤
error: ‘filter2D’ was not declared in this scope錯誤原因：google： 'filter2D' : is not a member of 'cv' 沒有添加對應的庫：#include<ope
2018-08-22 12:15:55
1
原创 樹莓派移植Arch Linux 安裝qt5 qtcreator編譯報錯 qmake
在projects 下，build中make項提示make not in the environment。 原因：make命令未安裝： 解決： sudo pacman -S make 安裝完make再進行編譯能成功
2018-08-22 12:15:55
1
原创 樹莓派安裝Arch linux，opencv無法調用官方攝像頭
錯誤：Error: Assertion failed (scn == 3 || scn == 4) in cvtColor, file /build/opencv/src/opencv-3.4.1/modules/imgproc/src/
2018-08-22 12:15:55
12
原创 windows 飛控 PX4代碼 編譯報錯 /bin/sh python：command not found
1、/bin/sh python：command not found安裝python 並添加路徑2、ModuleNotFoundError: No module named 'future'“future”模塊未安裝升級PIP到最新板py
2018-08-22 12:15:55
4
原创 python3.6 TypeError: 'dict_keys' object does not support indexing
版本問題 在python2中 firstStr = myTree.keys()[0] 在python3中 firstStr = list(myTree.keys())[0]
2018-08-22 12:15:55
原创 arch linux python3.6.2 import matplotlib.pyplot as plt 報錯
>>> import matplotlib.pyplot as plt Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/us
2018-08-22 12:15:55
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 deletion trainingSet = lis
2018-08-22 12:15:55
4
原创 arch linux python3.6.2 圖像處理Pillow庫未安裝導致的錯誤
>>import matplotlib.pyplot as plt >>plt.figure('the First Picture') >>first_picture = plt.imread('first.jpg') File "<st
2018-08-22 12:15:05
9