pyinstaller打包项目报错总结

一、二维码识别模块 pyzbar报错

1.1 模块安装报错

参考：https://blog.csdn.net/pythonlaodi/article/details/112783132

项目识别二维码需要安装pyzbar,安装完，启动项目出现如下报错！
FileNotFoundError: Could not find module '你的路径\Python\Python38\site-packages\pyzbar\libzbar-64.dll' (or one of its dependencies). Try using the full path with constructor syntax

解决方法：

没事，这个坑我已经踩过。这个报错的原因是没有安装 Visual C++ 的依赖库
下载地址：Visual C++ Redistributable Packages for Visual Studio 2013
进入之后，拉到下面可以看到下载的按钮，下载完之后安装即可！：

1.2 pyinstaller打包后 Failed to load dynlib/dll 'libiconv.dll'

项目在没打包前运行没问题，识别正常，打包后就有以下报错，这是因为该模块的dll加载失败造成的

Traceback (most recent call last):
  File "pyzbar\zbar_library.py", line 58, in load
  File "pyzbar\zbar_library.py", line 50, in load_objects
  File "pyzbar\zbar_library.py", line 51, in <listcomp>
  File "ctypes\__init__.py", line 447, in LoadLibrary
  File "PyInstaller\loader\pyimod04_ctypes.py", line 56, in __init__
pyimod04_ctypes.PyInstallerImportError: Failed to load dynlib/dll 'libiconv.dll'. Most probably this dynlib/dll was not found when the application was frozen.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "PyInstaller\loader\pyimod04_ctypes.py", line 54, in __init__
  File "ctypes\__init__.py", line 369, in __init__
FileNotFoundError: Could not find module 'D:\代码\weebot\main\pyzbar\libiconv.dll'. Try using the full path with constructor syntax.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "main.py", line 9, in <module>
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "PyInstaller\loader\pyimod03_importers.py", line 546, in exec_module
  File "bot_core\wechat.py", line 15, in <module>
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "PyInstaller\loader\pyimod03_importers.py", line 546, in exec_module
  File "pyzbar\pyzbar.py", line 7, in <module>
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "PyInstaller\loader\pyimod03_importers.py", line 546, in exec_module
  File "pyzbar\wrapper.py", line 139, in <module>
  File "pyzbar\wrapper.py", line 136, in zbar_function
  File "pyzbar\wrapper.py", line 115, in load_libzbar
  File "pyzbar\zbar_library.py", line 60, in load
  File "pyzbar\zbar_library.py", line 50, in load_objects
  File "pyzbar\zbar_library.py", line 51, in <listcomp>
  File "ctypes\__init__.py", line 447, in LoadLibrary
  File "PyInstaller\loader\pyimod04_ctypes.py", line 56, in __init__
pyimod04_ctypes.PyInstallerImportError: Failed to load dynlib/dll 'D:\\代码\\weebot\\main\\pyzbar\\libiconv.dll'. Most probably this dynlib/dll was not found when the application was frozen.
[3632] Failed to execute script 'main' due to unhandled exception!