小编use*_*094的帖子

我的测试应用程序编译正常，但我收到此警告：“关键依赖项：依赖项的请求是一个表达式”

(base) marco@pc01:~/webMatters/vueMatters/PeerJS-VueJS-Test$ npm run serve

> testproject@0.1.0 serve /home/marco/webMatters/vueMatters/PeerJS-VueJS-Test
> vue-cli-service serve

 INFO  Starting development server...
98% after emitting CopyPlugin

WARNING  Compiled with 1 warnings                                                                                                             
7:22:25 PM

warning  in ./node_modules/peerjs/dist/peerjs.min.js

Critical dependency: the request of a dependency is an expression


  App running at:
  - Local:   http://localhost:8080 
  - Network: http://ggc.world/

  Note that the development build is not optimized.
  To create a production build, run npm run build.

我读到它可能依赖于 webpack，但没有找到如何解决它。

这是 webpack.config.js ：

{
    "mode": "development",
    "output": {
        "path": __dirname+'/static',
        "filename": …

几天前，我将 Ubuntu 16.04 Server Edition gcc 更新为 gcc 7.2 版本：

gcc version 7.2.0 (Ubuntu 7.2.0-1ubuntu1~16.04)

这应该是 Ubuntu 可用的 gcc 的最新版本

现在，编写一本书的示例，

g++ -std=c++17 auto_parallel.cpp -oauto_parallel

auto_parallel.cpp:5:10: fatal error: execution: No such file or directory
include <execution>

~~~~~~~~~~

compilation terminated.

如何解决问题？提前致谢。马可

我正在尝试弄清楚如何成功完成本教程的安装和首次运行 Apache-Kafka ：如何在 Ubuntu 18.04 LTS 上安装 Apache Kafka

在杀死之前运行的zookeeper实例后，我再次尝试启动zookeeper服务器，但是当该过程到达端口绑定阶段时，它永远停止了..：KafkaActivationFailed

marco@PC:/usr/share/zookeeper$ sudo lsof -i :2181\nCOMMAND  PID      USER   FD   TYPE DEVICE SIZE/OFF NODE NAME\njava    4545 zookeeper   32u  IPv6  43042      0t0  TCP *:2181 (LISTEN)\nmarco@PC:/usr/share/zookeeper$ sudo kill 4545\n\n\nmarco@PC:/usr/local/kafka$ bin/zookeeper-server-start.sh   \nconfig/zookeeper.properties\n[2018-09-04 12:18:14,608] INFO Reading configuration from:  \nconfig/zookeeper.properties  \n(org.apache.zookeeper.server.quorum.QuorumPeerConfig)\n[2018-09-04 12:18:14,609] INFO autopurge.snapRetainCount set to 3  \n(org.apache.zookeeper.server.DatadirCleanupManager)\n[2018-09-04 12:18:14,609] INFO autopurge.purgeInterval set to 0  \n(org.apache.zookeeper.server.DatadirCleanupManager)\n[2018-09-04 12:18:14,609] INFO Purge task is not scheduled. \n(org.apache.zookeeper.server.DatadirCleanupManager)\n[2018-09-04 12:18:14,610] WARN Either no config or no quorum defined in …

我正在尝试生成系统创世块（HyperledgerFabricNetwork 2.0.0 版，Ubuntu 18.04.4 桌面版），但出现错误：

(base) marco@pc01:~/hyperledgerFabric/FabricInstallConfig/Udemy-FabricNetworkDesignSetup /HLF2-v1.4-3.2/configtx/multi-org$ configtxgen -outputBlock ./acme-genesis.blocl -profile AirlineOrdererGenesis -channelID AirlineChannel

2020-02-20 09:30:23.662 CET [common.tools.configtxgen] main -> INFO 001 Loading 
configuration
2020-02-20 09:30:23.673 CET [common.tools.configtxgen.localconfig] completeInitialization ->
INFO 002 orderer type: solo
2020-02-20 09:30:23.673 CET [common.tools.configtxgen.localconfig] Load -> INFO 003 Loaded
configuration: /home/marco/hyperledgerFabric/FabricInstallConfig/Udemy- 
FabricNetworkDesignSetup/HLF2-v1.4-3.2/configtx/multi-org/configtx.yaml
2020-02-20 09:30:23.673 CET [common.tools.configtxgen] main -> FATA 004 Error on 
outputBlock: could not create bootstrapper: could not create channel group: could not create
orderer group: error adding policies to orderer group: no …

使用 conda 安装 pytorch ：

(base) (3.8.0/envs/my_virtual_env-3.8.0) marco@pc:~/facenet_pytorch/examples$ conda install  
pytorch torchvision cpuonly -c pytorch
Collecting package metadata (current_repodata.json): done
Solving environment: done

# All requested packages already installed.

我更新了康达：

(base) (3.8.0/envs/my_virtual_env-3.8.0) marco@pc:~/facenet_pytorch/examples$ conda update 
conda
Collecting package metadata (current_repodata.json): done
Solving environment: done

# All requested packages already installed.

安装 mkl=2019 ：

(base) (3.8.0/envs/my_virtual_env-3.8.0) marco@pc:~/facenet_pytorch/examples$ conda install  
mkl=2019
Collecting package metadata (current_repodata.json): done
Solving environment: done

# All requested packages already installed.

(base) (3.8.0/envs/my_virtual_env-3.8.0) marco@pc:~/facenet_pytorch/examples$ conda list | grep …

我在将 javascript 文件导入 vue.js 组件时遇到错误：

这是 /components 子文件夹的内容：

/startingV/src/components$ ls -lah
total 132K
drwxr-xr-x 2 marco marco 4,0K dic 26 11:22 .
drwxr-xr-x 5 marco marco 4,0K dic 26 09:32 ..
-rw-r--r-- 1 marco marco  441 nov  2  2016 Counter.vue
-rw-r--r-- 1 marco marco  441 dic 21 15:13 FormValidation.vue
-rw-r--r-- 1 marco marco 100K dic 26 10:38 js_plumbing.js
-rw-r--r-- 1 marco marco 9,3K dic 26 10:38 js_plumbing.wasm
-rw-r--r-- 1 marco marco  473 dic 26 11:14 Result.vue

编译时：

Failed to compile. …