我正在为我的工作构建一个django应用程序，以提取一些pdf信息，显然可以在virt环境中完美运行，但是，当部署到heroku时，我遇到了一些Java插件问题，我为heroku / java添加了buildpack，能够使用我在Google中找到的pom.xml文件，但是现在出现了此错误：下一步不需要任何想法了。
remote: [INFO] Packaging webapp
remote: [INFO] Assembling webapp [application-mvc] in
[/tmp/build_6ef3792faeda2226e0eed7f586b0857f/target/ApplicationName]
remote: [INFO] Processing war project
remote: [INFO] Webapp assembled in [59 msecs]
remote: [INFO] Building war:
/tmp/build_6ef3792faeda2226e0eed7f586b0857f/target/ApplicationName.war
remote: [INFO] ------------------------------------------------------------------------
remote: [INFO] BUILD FAILURE
remote: [INFO] ------------------------------------------------------------------------
remote: [INFO] Total time: 8.912 s
remote: [INFO] Finished at: 2019-11-25T22:31:19Z
remote: [INFO] ------------------------------------------------------------------------
remote: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-war) on project application-mvc: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1]
remote: [ERROR]
remote: [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
remote: [ERROR] Re-run Maven using the -X switch to enable full debug logging.
remote: [ERROR]
remote: [ERROR] For more information about the errors and possible solutions, please
read the following articles:
remote: [ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
remote:
remote: ! ERROR: Failed to build app with Maven
remote: We're sorry this build is failing! If you can't find the issue in application
code,
remote: please submit a ticket so we can help: https://help.heroku.com/
remote:
remote: ! Push rejected, failed to compile Java app.