Common Errors
1. Vue Template Error
This error usually occurs when using Vue templates. It may be caused by syntax errors, the use of undefined variables or components, etc. To solve this problem, you can carefully check the template code to make sure there are no syntax errors and spelling errors, while making sure all variables and components used are defined and properly introduced.
2. Cannot read property ‘xxx’ of undefined
This error usually occurs when referencing properties of Vue data objects. This error occurs if the data object is not defined or empty. Sometimes, this may be because some methods of the Vue instance are called before loading. To solve this problem, you can add the v-if directive and call the Vue instance method after loading.
3. Failed to mount component: template or render function not defined.
This error usually occurs when the Vue component is not correctly defined. This error occurs if the component's template option is not defined. To solve this problem, you can make sure that the template option of the component is correctly defined.
4. Unknown custom element: - did you register the component correctly?
This error usually occurs when the Vue component is not registered correctly. If the component is not registered correctly, Vue will not recognize the component. To solve this problem, you can define and register components.
5. [Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders.
This warning usually occurs when modifying the props of the Vue component. If you try to modify the value of props directly, Vue will warn you. To avoid this problem, you should use computed properties or methods to handle props to avoid modifying their values directly.
Summarize
The above are five common errors and solutions for Vue. When you encounter these problems, don't panic, you should troubleshoot the fault step by step. You can start by checking the code itself, making sure the code is free of syntax errors and spelling errors, while making sure all variables and components used are defined and properly introduced. If the problem persists, you can find out the cause and resolve it by step-by-step debugging.
Other questions
Vue error:0308010C:digital envelope routines::unsupported
Open the terminal
Linux & Mac OS
export NODE_OPTIONS=--openssl-legacy-provider
Windows Command Prompt:
set NODE_OPTIONS=--openssl-legacy-provider
NPM download slow solution
Method 1:
// Install cnpm - Use the command to download packagesnpm install -g cnpm --registry=
Method 2:
// Check the current download addressnpm config get registry // Set the address of Taobao imagenpm config set registry
Method 3:
Use nrm to manage the source and switch the download address
// nrm installationnpm install -g nrm // View optional sourcesnrm ls // Switch to taobao sourcenrm use taobao
This is the article about this article about solving all the errors reported by Vue. For more information about solving errors, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!