折腾：
【未解决】VSCode中调试java报错：Build failed do you want to continue
期间，其中第一个error是：
!MESSAGE Error occured while building workspace. Details: message: '<>' operator is not allowed for source level below 1.7; code: 16778099; resource: /Users/crifan/dev/dev_root/projects/xxx/src/refer/java/iec_analysis/src/main/java/com/iec/assemble101/ContinuousAddressBuilder.java; line: 48
所以去看看代码
发现问题 中也有：
点击进去看看代码
src/refer/java/iec_analysis/src/main/java/com/iec/assemble101/ContinuousAddressBuilder.java
this.informosomes = new ArrayList<>();
java message: ‘<>’ operator is not allowed for source level below 1.7
说是，去更换java的target version？
比如别人说的pom.xml，确保
<configuration> <source>1.8</source> <target>1.8</target> </configuration>
此处是vscode，去找找如何设置java的target version
vscode java message: ‘<>’ operator is not allowed for source level below 1.7
vscode message: ‘<>’ operator is not allowed for source level below 1.7
和我问题一样：
我又没去指定 小于1.7版本的java
所以说是：配置有问题
别人说到：Maven 或 Gradle 或 Eclipse
看来需要设置这些，才能确保设置版本正常
Changing the Maven source, target works.
pom.xml
<project> [...] <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> [...] </project>
想起来了，先去解决：
【已解决】VSCode调试Java弹框提示：Maven executable not found in PATH Please specifiy maven.executable.path in Settings
参考：
1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 2. xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 3. <modelVersion>4.0.0</modelVersion> 4. 5. <groupId>com.mycompany.app</groupId> 6. <artifactId>my-app</artifactId> 7. <version>1.0-SNAPSHOT</version> 8. 9. <properties> 10. <maven.compiler.source>1.7</maven.compiler.source> 11. <maven.compiler.target>1.7</maven.compiler.target> 12. </properties> 13. 14. <dependencies> 15. <dependency> 16. <groupId>junit</groupId> 17. <artifactId>junit</artifactId> 18. <version>4.12</version> 19. <scope>test</scope> 20. </dependency> 21. </dependencies> 22. </project>
官网的示例配置中都有这个source和target
然后去修改pom.xml
然后VSCode发现有改动，自动提示：
A build file was modified. Do you want to synchronize the Java classpath/configuration?
来源：Language Support for Java(TM) by RedHat (扩展)
点击 Always
这样以后每次就自动更新了。
然后注意到：
会自动重新编译整个项目文件
然后
之前问题有130个 + 左边项目文件很多红色的错误：
现在问题减少到120个了 + 且几个核心文件的红色错误也没了，只有黄色警告⚠️，而不是红色了：
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