无法激活 "IoT Link" 扩展, 因为它依赖于未加载的 "C/C++" 扩展。是否要重新加载窗口以加载扩展名的问题怎么解决
时间: 2023-12-12 12:05:07 浏览: 21
这个问题通常是由于 Visual Studio Code 没有正确安装 C/C++ 扩展造成的。您可以尝试以下步骤解决这个问题:
1. 在 Visual Studio Code 中打开“扩展”面板,搜索“C/C++”扩展并安装它。
2. 安装完成后,重新加载 Visual Studio Code。
3. 在 Visual Studio Code 中打开“扩展”面板,搜索“IoT Link”扩展并安装它。
4. 安装完成后,重新加载 Visual Studio Code。
如果上述步骤无法解决问题,您可以尝试卸载并重新安装 Visual Studio Code 和相关的扩展程序。
相关问题
linux平台用c/c++如何连接亚马逊平台的aws iot core,与设备进行交互,具体代码实现
连接 AWS IoT Core 平台需要使用 AWS IoT Device SDK for C,以下是一个简单的示例代码,用于连接 AWS IoT Core 平台,并发布一条消息:
```c++
#include <aws/iot/mqtt_client_interface.h>
#include <aws/iot/secure_tunneling.h>
#include <aws/iot/credential_provider.h>
#include <aws/iot/shadow/shadow_client.h>
#include <aws/iot/shadow/manager.h>
#include <aws/iot/shadow/thing_name_for_topic.h>
#include <mqtt_client_sample.h>
#include <iostream>
#include <cstring>
#include <csignal>
static void s_print_client_id(const char *prefix, const char *p_client_id) {
AWS_LOGSTREAM_INFO(MQTT_SAMPLE_LOG_TAG, prefix << " client id: " << p_client_id);
}
static void s_on_connection_complete(struct aws_mqtt_client_connection *p_connection, int error_code) {
if (AWS_OP_SUCCESS == error_code) {
AWS_LOGSTREAM_INFO(MQTT_SAMPLE_LOG_TAG, "connection succeeded!");
} else {
AWS_LOGSTREAM_WARN(MQTT_SAMPLE_LOG_TAG, "connection failed with error code " << error_code);
}
}
static void s_on_publish_complete(struct aws_mqtt_client_connection *p_connection, uint16_t packet_id, int error_code) {
if (AWS_OP_SUCCESS == error_code) {
AWS_LOGSTREAM_INFO(MQTT_SAMPLE_LOG_TAG, "publish succeeded! packet id=" << packet_id);
} else {
AWS_LOGSTREAM_WARN(MQTT_SAMPLE_LOG_TAG, "publish failed with error code " << error_code);
}
}
int main(int argc, char **argv) {
struct aws_allocator *p_allocator = aws_default_allocator();
struct aws_mqtt_client *p_client = NULL;
struct aws_mqtt_connection_options conn_options = AWS_MQTT_CONNECTION_OPTIONS_INIT;
struct aws_byte_cursor client_id_cursor = aws_byte_cursor_from_c_str("my_client_id");
struct aws_byte_cursor will_topic_cursor = aws_byte_cursor_from_c_str("my_will_topic");
struct aws_byte_cursor will_payload_cursor = aws_byte_cursor_from_c_str("my_will_payload");
struct aws_byte_cursor username_cursor = aws_byte_cursor_from_c_str("my_username");
struct aws_byte_cursor password_cursor = aws_byte_cursor_from_c_str("my_password");
struct aws_mqtt_message publish_message;
struct aws_byte_cursor topic_cursor = aws_byte_cursor_from_c_str("my_topic");
struct aws_byte_cursor payload_cursor = aws_byte_cursor_from_c_str("my_message");
// Initialize the SDK
aws_load_error_strings();
aws_io_load_error_strings();
aws_http_load_error_strings();
aws_auth_load_error_strings();
aws_mqtt_load_error_strings();
// Create a client
p_client = aws_mqtt_client_new(p_allocator, &aws_default_client_bootstrap);
if (NULL == p_client) {
std::cerr << "Failed to create MQTT client" << std::endl;
return AWS_OP_ERR;
}
// Set up the connection options
conn_options = aws_mqtt_connection_options_clean_session_init(&client_id_cursor);
conn_options.will = aws_byte_cursor_from_buf(&will_payload_cursor);
conn_options.will_topic = aws_byte_cursor_from_buf(&will_topic_cursor);
conn_options.username = aws_byte_cursor_from_buf(&username_cursor);
conn_options.password = aws_byte_cursor_from_buf(&password_cursor);
conn_options.keep_alive_time_secs = 60;
// Set up the publish message
publish_message = aws_mqtt_message_publish_init(&topic_cursor, AWS_MQTT_QOS_AT_LEAST_ONCE, &payload_cursor);
publish_message.on_complete = s_on_publish_complete;
// Connect to the broker
aws_mqtt_client_connection_connect(p_client, &conn_options, NULL /* p_tls_options */, s_on_connection_complete, NULL /* p_user_data */);
// Wait for the connection to complete before publishing a message
// Real-world code should use a condition variable or other synchronization mechanism instead of a sleep loop
while (AWS_MQTT_CLIENT_STATE_CONNECTED != aws_mqtt_client_connection_get_state(p_client)) {
aws_thread_current_sleep(1000);
}
// Publish a message
aws_mqtt_client_connection_publish(p_client, &publish_message);
// Clean up
aws_mqtt_client_connection_disconnect(p_client);
aws_mqtt_client_release(p_client);
aws_mqtt_library_clean_up();
aws_http_library_clean_up();
aws_io_library_clean_up();
aws_auth_library_clean_up();
aws_secure_tunneling_library_clean_up();
aws_crt_cleanup();
return AWS_OP_SUCCESS;
}
```
需要注意的是,此示例代码仅用于演示连接 AWS IoT Core 平台和发布一条消息,实际应用中还需要考虑更多的细节和安全性问题。
如何使用aws sdk c/c++用mqtt协议连接亚马逊平台
使用 AWS SDK C++ 连接 AWS IoT Core MQTT 协议的步骤如下:
1. 安装 AWS SDK C++:可以从 AWS 官方网站下载并安装 AWS SDK C++。
2. 配置 AWS SDK C++:在代码中导入 AWS SDK C++ 的头文件和库文件。
3. 创建 AWS IoT Core 的客户端:使用 AWS SDK C++ 创建 AWS IoT Core 的客户端对象。
4. 配置 AWS IoT Core 的连接参数:设置客户端对象的连接参数,包括证书、私钥、端点地址等。
5. 连接 AWS IoT Core:使用客户端对象连接 AWS IoT Core。
6. 订阅主题:使用客户端对象订阅需要接收的主题。
7. 发布消息:使用客户端对象发布消息到指定的主题。
下面是一段示例代码,演示如何使用 AWS SDK C++ 连接 AWS IoT Core MQTT 协议:
```c++
#include <aws/core/Aws.h>
#include <aws/iot/IotClient.h>
#include <aws/iot/model/ConnectRequest.h>
#include <aws/iot/model/ConnectResponse.h>
#include <aws/iot/model/SubscribeRequest.h>
#include <aws/iot/model/SubscribeResponse.h>
#include <aws/iot/model/PublishRequest.h>
#include <aws/iot/model/PublishResponse.h>
int main(int argc, char** argv)
{
Aws::SDKOptions options;
Aws::InitAPI(options);
// 创建 IoT Core 客户端
Aws::IoT::IoTClient iotClient;
// 配置连接参数
Aws::IoT::Model::ConnectRequest connectRequest;
connectRequest.SetClientId("my_client_id");
connectRequest.SetEndpoint("my_endpoint");
connectRequest.SetMqttUsername("my_username");
connectRequest.SetMqttPassword("my_password");
connectRequest.SetUseWebsocket(false);
// 连接 IoT Core
auto connectOutcome = iotClient.Connect(connectRequest);
if (!connectOutcome.IsSuccess()) {
std::cout << "Failed to connect to IoT Core: " << connectOutcome.GetError().GetMessage() << std::endl;
return 1;
}
// 订阅主题
Aws::IoT::Model::SubscribeRequest subscribeRequest;
subscribeRequest.SetTopic("my/topic");
subscribeRequest.SetQos(Aws::IoT::Model::Qos::AT_LEAST_ONCE);
auto subscribeOutcome = iotClient.Subscribe(subscribeRequest);
if (!subscribeOutcome.IsSuccess()) {
std::cout << "Failed to subscribe to topic: " << subscribeOutcome.GetError().GetMessage() << std::endl;
return 1;
}
// 发布消息
Aws::IoT::Model::PublishRequest publishRequest;
publishRequest.SetTopic("my/topic");
publishRequest.SetQos(Aws::IoT::Model::Qos::AT_LEAST_ONCE);
publishRequest.SetPayload("Hello, world!");
auto publishOutcome = iotClient.Publish(publishRequest);
if (!publishOutcome.IsSuccess()) {
std::cout << "Failed to publish message: " << publishOutcome.GetError().GetMessage() << std::endl;
return 1;
}
Aws::ShutdownAPI(options);
return 0;
}
```
在上面的代码中,需要将以下参数替换为实际的值:
- `my_client_id`:客户端 ID。
- `my_endpoint`:AWS IoT Core 的端点地址。
- `my_username`:MQTT 用户名。
- `my_password`:MQTT 密码。
- `my/topic`:需要订阅或发布的主题。