Java Maven编译“找不到符号”
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Maven compile "Cannot find symbol"
提问by quarks
For some reason this command works fine with my local machine:
出于某种原因，这个命令在我的本地机器上运行良好：
mvn clean install -DskipTests=true -Psdk
However for Codeship it does now work and throws this "Cannot find symbol" error. In Codeship the full command is:
但是，对于 Codeship，它现在可以工作并抛出此“找不到符号”错误。在 Codeship 中，完整的命令是：
jdk_switcher use oraclejdk8
echo $JAVA_HOME
mvn clean install -DskipTests=true -Psdk
In the POM the repository have this:
在 POM 中，存储库具有以下内容：
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
Error:
错误：
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ client-app ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 65 source files to /home/rof/src/bitbucket.org/company/client-app/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /home/rof/src/bitbucket.org/company/client-app/src/main/java/com/client/rest/resources/MyResource.java:[3,61] cannot find symbol
symbol: class MyEntity
采纳答案by Shubham Jain
Your Maven is reading Java version as 1.8, Where as the pom.xml says the version is 1.7.
您的 Maven 将 Java 版本读取为 1.8，而 pom.xml 表示版本为 1.7。
Try installing the required verison.
尝试安装所需的版本。
If already installed check your $JAVA_HOME environment variable, it should contain the path of Java JDK 8. If you dont find it, fix your environment variable.
如果已经安装，请检查您的 $JAVA_HOME 环境变量，它应该包含 Java JDK 8 的路径。如果找不到，请修复您的环境变量。
also remove the lines
也删除线
<fork>true</fork>
<executable>${JAVA_1_8_HOME}/bin/javac</executable>
from the pom.xml
从 pom.xml
回答by user4906240
I had the same issue. reason was one of the class was used in
我遇到过同样的问题。原因是其中一个类被用于
src/main/java/
Where as in actual it was present in
实际上它出现在什么地方
src/test/java
回答by Pritom
If you have correctly imported dependency the you can try the following process.
First try- mvn clean
if that runs successfully then try-mvn install
If this works fine then you can try-mvn compile
This process worked for me.
如果您已正确导入依赖项，则可以尝试以下过程。
首先尝试 -mvn clean
如果运行成功，然后尝试 -mvn install
如果这工作正常，那么你可以尝试 -mvn compile
这个过程对我有用。
回答by Pranay Prusti
I had the similar issue but when I changed Testng version in POM it resolved the issue.
我有类似的问题，但是当我在 POM 中更改 Testng 版本时，它解决了这个问题。
<artifactId>testng</artifactId>
<version>6.9.8</version> // Changed the version to 6.9.8
<scope>test</scope>
