no matching function for call to connect

这个错误通常是因为在使用connect函数时，参数类型不匹配导致的。可能是因为传递的参数类型与函数定义的参数类型不一致，或者是因为函数定义中没有包含所需的参数。建议检查一下函数调用的参数类型和数量是否正确，并确保函数定义中包含了所需的参数。

相关问题

no matching function for call to widget：：connect

This error message typically occurs in Qt when you try to connect a signal to a slot, but the arguments of the signal and the slot do not match. To fix it, you need to make sure that the arguments of the signal and the slot are compatible.

For example, if you have a signal that takes an integer parameter and a slot that takes a string parameter, you will get this error message. To fix it, you either need to change the signal to take a string parameter or change the slot to take an integer parameter.

Here's an example of how to connect a signal to a slot with compatible arguments:

QObject::connect(sender, &Sender::valueChanged, receiver, &Receiver::updateValue);

In this example, the signal "valueChanged" takes an integer parameter and the slot "updateValue" also takes an integer parameter, so they are compatible. If your code is still giving you the "no matching function for call to widget::connect" error message, double-check the arguments of the signal and the slot to make sure they match.

no matching function to call connect

"No matching function for call to 'connect'" 这个错误通常出现在Qt的connect函数调用时，意味着在调用connect函数时，没有找到匹配的函数。根据引用，connect函数有多个重载版本，每个版本都有不同的参数类型和数量。为了正确调用connect函数，参数类型和数量必须与可用的重载版本匹配。根据引用和引用，错误的原因可能是connect函数的参数类型或数量与可用的重载版本不匹配。为了解决这个问题，你可以检查参数类型、数量和顺序是否正确，并确保调用的版本与你期望的版本匹配。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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