I installed idea2018 on my new computer to import the project from the original computer, recompiled the project using rebuild project, and did not generate the build directory (under the D:javawangxiaoqfd-wechat directory)
during project startup
validateJarFile (D:javawangxiaoqfd-wechatbuildclassesartifactsqfd-webchat-warexplodedqfd-webchat-war-0.0.1-SNAPSHOT.warWEB-INFlibjavax.servlet-api-3.1.0.jar)
Project resources cannot be loaded because the build directory is not generated