One 、nodejs install

1.1 Installation environment

The computer ：win 10 64 position

nodejs：node-v12.20.0-x64

nodejs Download the official website : nodejs Official website . Or select the version to download ：https://nodejs.org/download/release/v12.20.0/node-v12.20.0-x64.msi

Click the selected icon to download to the local computer .

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1.2 Start installation

1、 Put the installation package in the designated location of your computer , Double click execute

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2、 Click next

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3、 Click next after checking

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4、 Click on the change Button , Change to your designated installation position , Click next , Of course, it's OK not to change the default location .

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5、 Click next by default

explain ：

1、Node.js runtime Represents the operating environment

2、npm package manager Express npm Package manager

3、online documentation shortcuts Online document shortcuts

4、Add to PATH Add to environment variables

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6、 We can leave this step unchecked , Go straight to the next step .

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7、 Click our Install button

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8、 After a while, the installation success button will appear , Let's click finish , It means that the installation is successful ！

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1.3 Verify the installation

Node.js Installation completed , You can start with a simple test to see if the installation is successful .

1、 Press on the keyboard 【win+R】 key , Input cmd, And then go back , Open the command line interface

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2、 Enter the command prompt window , Input the following commands respectively , Display version number , Installation succeeded , Pictured .

node -v      Show installed nodejs edition npm -v       Show installed npm edition 

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notes ： This is explained below ： New version of the Node.js I have brought with me npm, install Node.js Will be installed together ,npm The function of is to Node.js Dependent packages for management , It can also be understood as being used to install / uninstall Node.js What needs to be packed .

1.4 Use nodejs install yarn

1、 stay cmd Use the command in the window to install the dependency management tool yarn

npm install -g yarn

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2、 see yarn Version number

yarn --version

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Two 、pancakeswap Front end source code compilation

2.1 yarn Installation dependency

1、 Enter the source directory

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2、git initialization

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3、 perform yarn Installation dependency

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2.2 Build the project

1、 modify packge.json file build Parameters

 take packge.json In your file  "build": "CI=false react-scripts build", It is amended as follows  "build": "react-scripts build",

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2、 Execute the command to build the project

npm run build

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3、 Check whether the project is built successfully

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3、 ... and 、 Problem solving

3.1 git Can't be found

• Wrong content :

fatal: not a git repository (or any of the parent directories): .git

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• Error reason ：git Can't be found
• resolvent ： Initialize in the source folder path git

git init

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3.2 Project construction error

• Wrong content ：

npm ERR! [email protected] build: `CI=false react-scripts build`

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• resolvent ：

 take packge.json In your file  "build": "CI=false react-scripts build", It is amended as follows  "build": "react-scripts build",

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