An attempt was made to call a method that does not exist. The attempt was made from the following location:

This error message typically indicates that a piece of code is trying to call a method or function that does not exist within the context or object it is operating on. The location from which the attempt was made will typically be provided in the error message, which can include a specific line number or file location.

To resolve this error, you will need to review the code that is causing the error and ensure that all method and function calls are correctly spelled and exist within the appropriate scope. If necessary, you may need to consult documentation or other resources to locate the correct method or function that should be used.

相关问题

swagger2 An attempt was made to call a method that does not exist. The attempt was made from the following location:

### 解决Swagger2调用不存在方法的问题

当遇到Swagger2调用不存在的方法时，通常是因为API文档与实际实现之间存在不一致。为了有效解决问题，可以从以下几个方面入手：

#### 1. 检查控制器映射配置
确保控制层中的方法在`@RequestMapping`中显式指定了请求类型（GET/POST等），这样可以防止Swagger UI默认认为所有类型的请求都适用，从而避免API列表中出现重复项[^3]。

@RestController
@RequestMapping("/api/example")
public class ExampleController {

    @GetMapping(value = "/getExample", produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<ExampleResponse> getExample() {
        // 方法体...
        return new ResponseEntity<>(new ExampleResponse(), HttpStatus.OK);
    }

    @PostMapping(value = "/postExample", consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<String> postExample(@RequestBody ExampleRequest request) {
        // 方法体...
        return new ResponseEntity<>("Success", HttpStatus.CREATED);
    }
}

#### 2. 接口路径匹配问题排查
确认接口的实际URL路径是否正确无误，并且与前端发起请求的路径完全吻合。特别是在Kubernetes集群环境中部署的应用程序，可能会因为服务发现机制而导致内部路由不同步的情况发生[^2]。

#### 3. 参数校验及数据传输格式验证
对于带有参数传递的操作，比如通过HTTP POST提交JSON对象给服务器处理的情形下，务必保证客户端发送的数据结构同后端期望接收的一致；另外还需注意Content-Type头字段设置得当，以确保能够顺利解析入参并返回预期的结果[^4]。

#### 4. 更新依赖版本保持同步
有时第三方库之间的兼容性差异也会引发此类现象的发生，因此建议定期检查项目所使用的Swagger相关组件及其配套工具链是否有新版本发布，并及时升级至稳定状态下的最新版次来规避潜在风险。

使用config出现An attempt was made to call a method that does not exist. The attempt was made from the following location:

使用config出现"An attempt was made to call a method that does not exist"的错误是由于尝试调用一个不存在的方法造成的。具体的错误发生位置可以在引用中看到。根据引用中的信息可以得知，该错误发生在GatewayAutoConfiguration.java文件的第612行，具体是在gatewayHttpClient方法内部发生的。这个错误可能是由于在调用该方法时使用了一个不存在的方法或者错误的参数引起的。我们需要对该方法的调用进行检查，确保方法名和参数的正确性。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* *3* [Gateway启动失败：An attempt was made to call a method that does not exist.](https://blog.csdn.net/qq_40788718/article/details/107841385)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 100%"]
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