How to solve 'undefined: template.New' error in golang?

How to solve the "undefined: template.New" error in golang?

When using golang for template rendering, we often use the New and Execute functions provided by the template package. However, in some cases, we may encounter an error message similar to "undefined: template.New". How to solve it?

First of all, we need to clarify a concept: the template package provides two types - template.Template and template.Template.Parse. When using the New function to generate a new template object, we should use the *template.Template type.

Next, we need to check whether the template package is correctly introduced in the code. In golang, there are usually two ways to introduce a package:

1. Directly use the import statement to introduce the package:

import "html/template"

2. Set an alias for the package and import:

import tpl "html/template"

If we do not introduce the template package correctly, an error similar to "undefined: template.New" will appear.

In addition, we also need to check whether the variable name defined in the code conflicts with the template package. For example, if we use the following code:

func New() {
    // ...
}

Then, when we execute template.New(), our own defined New function will actually be called instead of the New function in the template package.

Finally, if we still cannot solve the "undefined: template.New" error, it may be because we did not install golang correctly. We can try to reinstall golang and ensure that environment variables such as GOPATH and GOROOT are set correctly.

To sum up, when we encounter the "undefined: template.New" error, we should first check whether the template package is correctly introduced in the code, and there is no variable name defined that conflicts with it. If the problem persists, we can try to reinstall golang.

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