ngIfElse must be a TemplateRef, but received '2147483647'.

这错误通常是因为 ngIfElse 指令的参数传递有误。ngIfElse 指令的参数应该是一个 TemplateRef 类型的变量，但是你传递了一个数值类型的变量（2147483647）。

你需要检查一下 ngIfElse 指令的语法，确保它的参数是一个正确的 TemplateRef 类型的变量。如果你还是无法解决问题，可以把相关代码贴出来，我们一起看看。

相关问题

MAP must be a m x 3 array.

This error message usually occurs when you try to pass an array with an incorrect number of dimensions or an incorrect shape to a function or method that expects a specific shape or dimensionality of an input array.

In this case, the error message suggests that you are trying to pass a variable named "MAP" to a function that expects an array with three columns (i.e., three dimensions) and an unspecified number of rows (i.e., m). Double-check the shape of your input array and make sure it matches the expected shape. Also, make sure that the data type of the array elements is compatible with the function you are using.

Callback must be a function. Received { recursive: true }

This error message is usually encountered when a non-function value is passed as a callback parameter to a function that expects a function as the callback.

For example, in Node.js, the `fs.readdir()` function expects a callback function as its second parameter. If a non-function value is passed instead, such as an object with a `recursive` property set to `true`, the error message "Callback must be a function. Received { recursive: true }" will be thrown.

To fix this error, make sure that you are passing a function as the callback parameter when necessary. Check the documentation of the function you are working with to see what type of parameter is expected as the callback.