I have a Spring Boot stub project just generated on Spring Initializr, with pnpm preinstalled, but currenty no npm is installed, runned on Windows 10 with mvn spring-boot:run
The pom.xml is:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.2</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>tatar.gis</groupId>
<artifactId>geodata</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>geodata</name>
<description>Geodata Manipulation project</description>
<properties>
<java.version>1.8</java.version>
<vaadin.version>14.8.1</vaadin.version>
</properties>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>production</id>
<build>
<plugins>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<id>frontend</id>
<phase>compile</phase>
<goals>
<goal>prepare-frontend</goal>
<goal>build-frontend</goal>
</goals>
<configuration>
<productionMode>true</productionMode>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
And the console output is:
[INFO]
[INFO] --- spring-boot-maven-plugin:2.6.2:run (default-cli) @ geodata ---
[INFO] Attaching agents: []
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.6.2)
2022-01-07 18:39:54.874 INFO 16476 --- [ main] tatar.gis.geodata.GeodataApplication : Starting GeodataApplication using Java 1.8.0_65 on ILYA with PID 16476 (D:\Java\geodata\target\classes started by eljah32 in D:\Java\geodata)
2022-01-07 18:39:54.876 INFO 16476 --- [ main] tatar.gis.geodata.GeodataApplication : No active profile set, falling back to default profiles: default
2022-01-07 18:39:55.815 INFO 16476 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2022-01-07 18:39:55.823 INFO 16476 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2022-01-07 18:39:55.823 INFO 16476 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.56]
2022-01-07 18:39:55.919 INFO 16476 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2022-01-07 18:39:55.919 INFO 16476 --- [ main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1009 ms
2022-01-07 18:39:57.974 INFO 16476 --- [ main] c.v.f.s.VaadinServletContextInitializer : Search for subclasses and classes with annotations took 1 seconds
2022-01-07 18:39:57.975 INFO 16476 --- [ main] c.v.f.s.VaadinServletContextInitializer : Due to slow search it is recommended to use the whitelisted-packages feature to make scanning faster.
See the whitelisted-packages section in the docs at https://vaadin.com/docs/latest/flow/integrations/spring/configuration#special-configuration-parameters
2022-01-07 18:39:57.978 INFO 16476 --- [ main] c.v.f.server.startup.DevModeInitializer : Starting dev-mode updaters in D:\Java\geodata folder.
2022-01-07 18:39:58.006 INFO 16476 --- [ main] dev-updater : Visited 90 classes. Took 20 ms.
2022-01-07 18:39:58.017 INFO 16476 --- [ main] dev-updater : Added 23 default dependencies to main package.json
2022-01-07 18:39:58.038 INFO 16476 --- [ main] dev-updater : Running `npm install` to resolve and optionally download frontend dependencies. This may take a moment, please stand by...
2022-01-07 18:39:58.210 ERROR 16476 --- [ main] dev-updater : Error when running `npm install`
java.io.IOException: Cannot run program "--no-update-notifier" (in directory "D:\Java\geodata"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048) ~[na:1.8.0_65]
at com.vaadin.flow.server.frontend.TaskRunNpmInstall.runNpmInstall(TaskRunNpmInstall.java:365) [flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.server.frontend.TaskRunNpmInstall.execute(TaskRunNpmInstall.java:138) [flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.server.frontend.NodeTasks.execute(NodeTasks.java:529) [flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.server.startup.DevModeInitializer.initDevModeHandler(DevModeInitializer.java:330) [flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.spring.VaadinServletContextInitializer$DevModeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:447) [vaadin-spring-12.4.2.jar:na]
at com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener.lambda$contextInitialized$0(VaadinServletContextInitializer.java:180) [vaadin-spring-12.4.2.jar:na]
at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_65]
at com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:180) [vaadin-spring-12.4.2.jar:na]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4766) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5230) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_65]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) ~[na:1.8.0_65]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_65]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) ~[na:1.8.0_65]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:432) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) ~[tomcat-embed-core-9.0.56.jar:9.0.56]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:473) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:206) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:182) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290) ~[spring-boot-2.6.2.jar:2.6.2]
at tatar.gis.geodata.GeodataApplication.main(GeodataApplication.java:10) ~[classes/:na]
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method) ~[na:1.8.0_65]
at java.lang.ProcessImpl.<init>(ProcessImpl.java:386) ~[na:1.8.0_65]
at java.lang.ProcessImpl.start(ProcessImpl.java:137) ~[na:1.8.0_65]
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) ~[na:1.8.0_65]
... 46 common frames omitted
2022-01-07 18:39:58.211 ERROR 16476 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Exception sending context initialized event to listener instance of class [com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener]
java.lang.RuntimeException: Unable to initialize Vaadin DevModeHandler
at com.vaadin.flow.spring.VaadinServletContextInitializer$DevModeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:450) ~[vaadin-spring-12.4.2.jar:na]
at com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener.lambda$contextInitialized$0(VaadinServletContextInitializer.java:180) ~[vaadin-spring-12.4.2.jar:na]
at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_65]
at com.vaadin.flow.spring.VaadinServletContextInitializer$CompositeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:180) ~[vaadin-spring-12.4.2.jar:na]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4766) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5230) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) [tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_65]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) [na:1.8.0_65]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) [tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_65]
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-embed-core-9.0.56.jar:9.0.56]
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) [na:1.8.0_65]
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:432) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.apache.catalina.startup.Tomcat.start(Tomcat.java:486) [tomcat-embed-core-9.0.56.jar:9.0.56]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:123) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:473) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:206) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:182) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577) [spring-context-5.3.14.jar:5.3.14]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290) [spring-boot-2.6.2.jar:2.6.2]
at tatar.gis.geodata.GeodataApplication.main(GeodataApplication.java:10) [classes/:na]
Caused by: javax.servlet.ServletException: com.vaadin.flow.server.ExecutionFailedException: Command 'npm install' failed to finish
at com.vaadin.flow.server.startup.DevModeInitializer.initDevModeHandler(DevModeInitializer.java:341) ~[flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.spring.VaadinServletContextInitializer$DevModeServletContextListener.contextInitialized(VaadinServletContextInitializer.java:447) ~[vaadin-spring-12.4.2.jar:na]
... 41 common frames omitted
Caused by: com.vaadin.flow.server.ExecutionFailedException: Command 'npm install' failed to finish
at com.vaadin.flow.server.frontend.TaskRunNpmInstall.runNpmInstall(TaskRunNpmInstall.java:409) ~[flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.server.frontend.TaskRunNpmInstall.execute(TaskRunNpmInstall.java:138) ~[flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.server.frontend.NodeTasks.execute(NodeTasks.java:529) ~[flow-server-2.7.7.jar:2.7.7]
at com.vaadin.flow.server.startup.DevModeInitializer.initDevModeHandler(DevModeInitializer.java:330) ~[flow-server-2.7.7.jar:2.7.7]
... 42 common frames omitted
Caused by: java.io.IOException: Cannot run program "--no-update-notifier" (in directory "D:\Java\geodata"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048) ~[na:1.8.0_65]
at com.vaadin.flow.server.frontend.TaskRunNpmInstall.runNpmInstall(TaskRunNpmInstall.java:365) ~[flow-server-2.7.7.jar:2.7.7]
... 45 common frames omitted
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method) ~[na:1.8.0_65]
at java.lang.ProcessImpl.<init>(ProcessImpl.java:386) ~[na:1.8.0_65]
at java.lang.ProcessImpl.start(ProcessImpl.java:137) ~[na:1.8.0_65]
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029) ~[na:1.8.0_65]
... 46 common frames omitted
2022-01-07 18:39:58.212 ERROR 16476 --- [ main] o.apache.catalina.core.StandardContext : One or more listeners failed to start. Full details will be found in the appropriate container log file
2022-01-07 18:39:58.212 ERROR 16476 --- [ main] o.apache.catalina.core.StandardContext : Context [] startup failed due to previous errors
2022-01-07 18:39:58.494 INFO 16476 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-01-07 18:39:58.497 WARN 16476 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
2022-01-07 18:39:58.504 INFO 16476 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-01-07 18:39:58.523 ERROR 16476 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:163) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577) ~[spring-context-5.3.14.jar:5.3.14]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290) [spring-boot-2.6.2.jar:2.6.2]
at tatar.gis.geodata.GeodataApplication.main(GeodataApplication.java:10) [classes/:na]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:473) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:206) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:182) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160) ~[spring-boot-2.6.2.jar:2.6.2]
... 8 common frames omitted
Caused by: java.lang.IllegalStateException: StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[] failed to start
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.rethrowDeferredStartupExceptions(TomcatWebServer.java:187) ~[spring-boot-2.6.2.jar:2.6.2]
at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:126) ~[spring-boot-2.6.2.jar:2.6.2]
... 13 common frames omitted
The Vaadin plugin is missing in the build section.
Add this plugin in build -> plugins
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.version}</version>
<executions>
<execution>
<goals>
<goal>prepare-frontend</goal>
</goals>
</execution>
</executions>
</plugin>
The easiest way to create a Vaadin project ist https://start.vaadin.com