NSInvalidArgumentException：Json 写入目标 c 中的类型无效

问：

我是目标 c 的新手。我在以下行的 Json write （NSError） 中得到 NSInvalidArgumentException Invalid type。

  NSURLSessionDataTask *result = [self POST:@"/analytics"
                                  parameters:params completion:^(OVCResponse * _Nullable response, NSError * _Nullable error) {
                                      [self handleResponse:response error:error adjustErrorBlock:self.commonErrorAdjustBlock completion:theCompletion];
                                  }];

代码如下

 NSArray *params = [MTLJSONAdapter JSONArrayFromModels:events error:NULL];
        
    void(^theCompletion)(id _Nullable, NSError * _Nullable) = ^(id _Nullable result, NSError * _Nullable error) {
        completion(error);
    };
    
    NSURLSessionDataTask *result = [self POST:@"/analytics/"
                                   parameters:params completion:^(OVCResponse * _Nullable response, NSError * _Nullable error) {
                                       [self handleResponse:response error:error adjustErrorBlock:self.commonErrorAdjustBlock completion:theCompletion];
                                   }];

HandleResponse 方法

- (void)handleResponse:(nullable OVCResponse *)response error:(nullable NSError *)error adjustErrorBlock:(nullable C8ApiClientv2AdjustErrorBlock)adjustErrorBlock completion:(void (^)(id _Nullable result, NSError * _Nullable error))completion {
    
    DebugLog(@"\n===[start response] <%@> \n===%@, \nerror:%@\n===[end response] <%@> ", self.class, response, error, self.class);
    
        NSError *adjustedError = nil;
        if (NULL != adjustErrorBlock){
            adjustedError = adjustErrorBlock(error, response);
        }
        
        if (nil != adjustedError) {
            completion(nil, adjustedError);
        } else {
            if (response.HTTPResponse.statusCode >= 200 && response.HTTPResponse.statusCode <= 299) {
                NSAssert(error == nil, @"got error though request succeded");
            }
            else if (response.HTTPResponse.statusCode == 401) {
                error = NSError.com_eight_APIServiceUnauthorizedError;
            }
            else if (response.HTTPResponse.statusCode >= 500 && response.HTTPResponse.statusCode <= 599) {
                error = nil != error ? error : NSError.com_eight_APIServiceUnknownError;
                [SentrySDK captureMessage:[NSString stringWithFormat:@"Request failed: internal server error (500):\n%@", response]];
            }
            else {
                error = nil != error ? error : NSError.com_eight_APIServiceUnknownError;
            }
            
            id result = nil == error ? response.result : nil;
            completion(result, error);
        }
    
}

跟踪

-[AFJSONRequestSerializer requestBySerializingRequest:withParameters:error:]
(AFNetworking/AFNetworking/AFURLRequestSerialization.m:1312)
8
+0x01f480
-[AFHTTPRequestSerializer requestWithMethod:URLString:parameters:error:]
(AFNetworking/AFNetworking/AFURLRequestSerialization.m:407)
8
+0x161de8
-[OVCHTTPSessionManager _dataTaskWithHTTPMethod:URLString:parameters:completion:]
(Overcoat/sources/Core/OVCHTTPSessionManager.m:74)
8
+0x1621f0
-[OVCHTTPSessionManager POST:parameters:completion:]
(Overcoat/sources/Core/OVCHTTPSessionManager.m:129)
8
+0x42d98c
-[C8AnalyticsClientv2 trackEvents:completion:]
(DAL/Networkingv2/Clients/C8AnalyticsClientv2.m:40)

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