D:\Maven\code\maven01>mvn test
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< com.imooc.maven01:maven01-model >-------------------
[INFO] Building maven01-model 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ maven01-model ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory D:\Maven\code\maven01\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ maven01-model ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to D:\Maven\code\maven01\target\classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ maven01-model ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory D:\Maven\code\maven01\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ maven01-model ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to D:\Maven\code\maven01\target\test-classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /D:/Maven/code/maven01/src/test/java/com/imooc/maven01/model/HelloWorldTest.java:[9,55] 找不到符號
? 符號:?? 類 HelloWorld
? 位置: 類 com.imooc.maven01.model.HelloWorldTest
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.789 s
[INFO] Finished at: 2018-07-20T16:34:48+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (default-testCompile) on project maven01-model: Compilation failure
[ERROR] /D:/Maven/code/maven01/src/test/java/com/imooc/maven01/model/HelloWorldTest.java:[9,55] 找不到符號
[ERROR]?? 符號:?? 類 HelloWorld
[ERROR]?? 位置: 類 com.imooc.maven01.model.HelloWorldTest
[ERROR]
[ERROR] -> [Help 1]

報錯說這有錯找不到符號

可是照著打沒錯的呀

我是真的沒轍了，求大佬解答下萬分感謝