私は Maven を使用する Vaadin 10 に取り組んでいます。Maven インストールを行うと、コンソールに以下のエラーが表示されます。すべてのコンパイラ構成を確認しました。Maven は初めてなので、助けてください:
[INFO] Building My Starter Project 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for org.webjars.bowergithub.polymerelements:iron-ajax:jar:2.1.3 is missing, no dependency information available
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ my-starter-project ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] Copying 2 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ my-starter-project ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:3.0.2:testResources (default-testResources) @ my-starter-project ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 17 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.7.0:testCompile (default-testCompile) @ my-starter-project ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 30 source files to C:\Capdes\Vaadin10\vaadin\my-starter-project\target\test-classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.583 s
[INFO] Finished at: 2018-08-23T10:57:58+05:30
[INFO] Final Memory: 27M/362M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:testCompile (default-testCompile) on project my-starter-project: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]