如果这不是由错误样式处理，你可以添加另一个文本代表你的错误，即在你的验证器函数，你必须更新errorString.
此处代码：

//Variable
String errorString = "";

//widget
   Column(
     children: [
        Form(
        key: formKey,
        child: TextFormField(
         controller: emailController,
           validator: (value) {
               if (value!.isEmpty) {
                  errorString = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled";
                } else {
                   errorString = "";
                }
                return null;
            },
          ),
        ),
        const SizedBox(height: 10),
        Align(
           alignment: Alignment.centerLeft,
             child: Text(errorString))
     ],
  ),

只需在InputDecoration中添加errorMaxLines: 3

• • 输出**：

• • 完整代码：**

TextFormField(
        autovalidateMode: AutovalidateMode.always,
        decoration: InputDecoration(
          errorMaxLines: 3,    //👈 Add this
          errorStyle: TextStyle(
            color: Colors.red,
            overflow: TextOverflow.visible,
          ),
        ),
        validator: (value) {
          if (value?.isEmpty == true) {
            return 'Please enter a value Please enter a value Please enter a value Please enter a value';
          }
          return null;
        },
      ),

在InputDecoration中放入以下代码行errorMaxLines：二：

InputDecoration(
  errorMaxLines: 2,
  errorStyle: TextStyle(
      color: AppColors.secondaryRed,
      overflow: TextOverflow.visible,
   ),
)

尝试在溢出下添加errorMaxLines: 2。