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並前往https://github.com/dart-lang/http/issues/208

FormatException: Scheme not starting with alphabetic character

The exception specifically calls out 'scheme' being "non-alphabetic", which is true if you're trying to connect to a raw IP "URI" like '8.8.8.8' ...

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查詢 「Alphabetic character」的人也找了：

  1. alphabetic character中文
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  3. alphabetic中文
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  4. Alpha character
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  5. Special character
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  6. Character
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  7. English character
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  8. Unique characters
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