Docker error request Error:post Unix://localhost:80/build?t=springio/springboot-demo:500:http Int_docker

First, the error information

Request error:post unix://localhost:80/build?t=springio/springboot-demo:500:http Internal Server Error

Ii. Solutions

Pom.xml file ${docker.image.prefix}/${project.artifactid} to Test/${project.artifactid}

Src/main/resource changed to./

Make sure Dockerfile is on the outermost layer of the project

Before modification

<plugin>
    <groupId>com.spotify</groupId>
    <artifactid>docker-maven-plugin</ artifactid>
    <version>0.4.13</version>
    <configuration>
        <imagename>${ Docker.image.prefix}/${project.artifactid}</imagename>
        <dockerdirectory>src/main/resource</ dockerdirectory>
        <resources>
            <resource>
                <targetPath>/</targetPath>
                <directory>${project.build.directory}</directory>
                <include>${project.build.finalname}. jar</include>
            </resource>
        </resources>
    </configuration>
</ Plugin>

After modification

 <plugin> <groupId>com.spotify</groupId> <artifactid>docker-maven-plugin</ artifactid> <version>0.4.13</version> <configuration> <imagename>mytest/${proje
            Ct.artifactid}</imagename> <dockerDirectory>./</dockerDirectory> <resources> <resource> <targetPath>/</targetPath> <directory>${project.
            Build.directory}</directory> <include>${project.build.finalName}.jar</include> </resource> </resources> </configuration> </plugin>