flutter各种问题

1.用别人的包，无法运行。提示这些：

找到这几个地方，进去修改一下内容。

比如这个文件：

2.提示有未兼容 null safe 的

Error: Cannot run with sound null safety, because the following dependencies
don't support null safety:

AndroidStudio->Run->Edit Configurations

添加—no–sound-null-safety

xxx

3.提示这个：

dyld[776]: Library not loaded: @rpath/libswiftCore.dylib

  Referenced from: /private/var/containers/Bundle/Application/5A63DAD7-363A-40D6-BCF4-5F805E233598/Runner.app/Runner

  Reason: tried: ‘/usr/lib/system/introspection/libswiftCore.dylib’ (no such file), ‘/private/var/containers/Bundle/Application/5A63DAD7-363A-40D6-BCF4-5F805E233598/Runner.app/Frameworks/libswiftCore.dylib’ (no such file), ‘/private/var/containers/Bundle/Application/5A63DAD7-363A-40D6-BCF4-5F805E233598/Runner.app/Frameworks/libswiftCore.dylib’ (no such file), ‘/usr/local/lib/libswiftCore.dylib’ (no such file), ‘/usr/lib/libswiftCore.dylib’ (no such file)

Library not loaded: @rpath/libswiftCore.dylib

  Referenced from: /private/var/containers/Bundle/Application/5A63DAD7-363A-40D6-BCF4-5F805E233598/Runner.app/Runner

  Reason: tried: ‘/usr/lib/system/introspection/libswiftCore.dylib’ (no such file), ‘/private/var/containers/Bundle/Application/5A63DAD7-363A-40D6-BCF4-5F805E233598/Runner.app/Frameworks/libswiftCore.dylib’ (no such file), ‘/private/var/containers/Bundle/Application/5A63DAD7-363A-40D6-BCF4-5F805E233598/Runner.app/Frameworks/libswiftCore.dylib’ (no such file), ‘/usr/local/lib/libswiftCore.dylib’ (no such file), ‘/usr/lib/libswiftCore.dylib’ (no such file)

(lldb)

解决：

在这里添加了：

/usr/bin/swift 

/usr/lib/swift

代码007普通

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