在XAMPP控制面板V3.2.1中，单击右上角的“NetStat”按钮。确保端口80没有被任何其他程序使用。然后点击它下面的“Shell”。在shell提示符中发出这个命令;

Apache_Start.bat

或者输入“ap”，然后按tab键两次，这将类似地生成上述命令。 您将看到Apache失败的确切错误。这很可能是虚拟主机配置问题或其他问题。它将显示发生错误的行号。只需要修复这个错误。注意，在RootDocument中，尾随的\也可能是错误的来源。删除任何拖尾""。

如果上面所有的答案都不奏效，那么就这么做。注释掉php.ini文件中的所有扩展名。

In xampp control panel, click on Apache config. click on php.ini In php ctrl + F (extension) to find all extensions in your php.ini Comment out each and every active extension by adding a ; at the start of each extension line. example ;;;extension=bz2 i put 3 ;;; because i wanted to know ones i commented out so that when i come back to deburg which one had a problem, it was easy for me to see which ones i commented out. Make sure all extensions=whatever are commented out. Run your apache server. To pickup which extension was the problem, one by one un-comment your extensions while restarting your server until you catch the culprit.

我收到了上面相同的错误，导致我的原因是在文件'httpd-vhosts.conf'中，我在<Directory>标签中放了一个注释，就像这样…

<Directory "*PATH TO MY FOLDER*...">
        AllowOverride All
        Require all Granted    ## This directive could/should be set to denied.
</Directory>

一旦我删除了注释，Apache就启动了。我想我应该把注释放在它自己的行里。我只是想，像其他网络代码一样，它可以在那里。

对我来说，这要容易得多。我关闭了本地windows防火墙。然后重新加载comp启动xampp并再次启动apache。然后把防火墙重新打开。

如果更改端口不能解决上述建议的问题，并且如果您可能玩弄了文件目录结构(例如，在安装后更改文件夹的名称，就像我所做的那样)，那么您可以尝试这样做，

打开XAMPP控制面板，点击Apache的“配置” 选择Apache (httpd.conf) 在打开的编辑器中，按CTRL+H找到旧文件夹名的所有实例，并用新文件夹名替换它。

例如，在我的例子中，我已经将XAMPP的主安装文件夹名称从Xam更改为XAMPP

在编辑器中修改如下:

Define SRVROOT "G:/Xam/apache"
ServerRoot "G:/Xam/apache"
DocumentRoot "G:/Xam/htdocs"
<Directory "G:/Xam/htdocs">

To

Define SRVROOT "G:/Xampp/apache"
ServerRoot "G:/Xampp/apache"
DocumentRoot "G:/Xampps/htdocs"
<Directory "G:/Xampps/htdocs">

在编辑器中还有许多其他这样的实例，只需找到并替换它们中的每一个。

对Apache (httpd-ssl.conf)也执行同样的操作。

遵循以下步骤:

Open your XAMPP control panel then click its "Config" Choose the "Apache (httpd.conf)" and find this code below and change it into this one: #Change this to Listen on specific IP addresses as shown below #to prevent Apache from glomming onto all bound IP addresses. #Listen 0.0.0.0:80 #Listen [::]:80 Listen 80 # Dynamic Shared Object (DSO) Support Save it (Ctrl + S) After that, go back to the XAMPP control panel and click its config again. Choose "Apache (httpd-ssl.conf)", find this code below, and change it again: # Note: Configurations that use IPv6 but not IPv4-mapped addresses need two # Listen directives: "Listen [::]:443" and "Listen 0.0.0.0:443" # #Listen 0.0.0.0:443 #Listen [::]:443 Listen 443 Save it (Ctrl + S) Then, click the "config" (note: above the netstat) and click the "service and port settings". Change "Main Port" to 8080 and "SSL Port" to 4433, then save it. Finally, go to the "control panel" -> "Programs & Features" -> "Turn Windows On or Off". Uncheck your "Internet Information Services", and then click OK.

只需等待它，您的计算机/笔记本电脑将自动重新启动，并尝试再次打开XAMPP控制面板，然后启动Apache。