idea 提示 this configuration cannot edited

打开idea不明原因idea出现这个提示
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网上查找一遍,说是在setting–>plugins下把红色的取消再重新勾上就可以了
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最后重启,问题得以解决

### IntelliJ IDEA VM Options Configuration In the context of configuring IntelliJ IDEA, adjusting VM (Virtual Machine) options is crucial for optimizing performance and ensuring proper encoding settings. The configuration involves modifying specific files within the installation directory. For altering VM options to ensure UTF-8 encoding support, one must edit `idea.exe.vmoptions` or `idea64.exe.vmoptions`, located under the `bin` folder of the IDEA installation path[^1]. Adding `-Dfile.encoding=UTF-8` at the end of these files ensures that all file operations are conducted using UTF-8 character encoding[^2]. Moreover, beyond setting up VM options through editing `.vmoptions` files directly, users can also configure global default encodings via graphical interface by navigating through **File -> Other Settings -> Default Settings -> Editor -> File Encodings**, where specifying UTF-8 as the project's default charset applies this setting across projects created thereafter[^3]. To further explore VM option configurations: #### Commonly Used Parameters Below lists some commonly used parameters when customizing VM options for IntelliJ IDEA: | Parameter | Description | |-----------|-------------| | `-Xms<size>` | Sets initial Java heap size. For example, `-Xms512m`. | | `-Xmx<size>` | Specifies maximum Java heap size. Example: `-Xmx2048m`. | | `-XX:+UseG1GC` | Enables G1 Garbage Collector which aims to minimize long garbage collection pauses. | These adjustments help tailor IDE behavior according to hardware capabilities and development needs without requiring changes each time a new instance starts. ```bash -Xms750m -Xmx3g -XX:ReservedCodeCacheSize=512m -XX:+UseCompressedOops -Dsun.io.useCanonCaches=false -Djava.net.preferIPv4Stack=true ``` This block represents typical entries found inside an edited `*.vmoptions` file aimed at enhancing stability and efficiency during coding sessions with large-scale applications or multiple plugins loaded simultaneously. --related questions-- 1. How does changing JVM memory allocation impact overall system resources? 2. What benefits come from enabling compressed ordinary object pointers (`-XX:+UseCompressedOops`) in modern systems? 3. Can you explain how different garbage collectors like G1 affect application responsiveness compared to others? 4. Is there any downside associated with forcing IPv4 stack preference over IPv6 (`-Djava.net.preferIPv4Stack=true`) ? 5. Why might someone need to adjust reserved code cache sizes (`-XX:ReservedCodeCacheSize`) specifically for their environment setup?
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