Maven DependencyResoulutionException Error - maven

Question

I am trying to run apache maven project but encounter with the following problem.
When I try to run mvn clean install, it shows this error.
[ERROR] Failed to execute goal on project admin: Could not resolve dependencies for project
com.fengmaotec:admin:jar:0.0.1-SNAPSHOT:
The following artifacts could not be resolved:
nl.jworks.markdown_to_asciidoc:markdown_to_asciidoc:jar:1.0, ch.netzwerg:paleo-core:jar:0.11.0:
Failure to find nl.jworks.markdown_to_asciidoc:markdown_to_asciidoc:jar:1.0 in
https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be
reattempted until the update interval of central has elapsed or updates are forced -> [Help 1]
pom.xml of my project.
<?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>
<groupId>com.fengmaotec</groupId>
<artifactId>admin</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>admin</name>
<description>fengmaotec admin project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<mybatis.spring.boot.starter.version>2.1.2</mybatis.spring.boot.starter.version>
<mybatis.plus.boot.starter.version>3.3.1</mybatis.plus.boot.starter.version>
<swagger.version>2.9.2</swagger.version>
<fastjson.version>1.2.68</fastjson.version>
<freemarker.version>2.3.29</freemarker.version>
<ECharts.version>4.7.0.1</ECharts.version>
<!-- 打包跳过测试 -->
<skipTests>true</skipTests>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>${mybatis.spring.boot.starter.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<!--常用工具类 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>${mybatis.plus.boot.starter.version}</version>
</dependency>
<!-- swagger2-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${swagger.version}</version>
<exclusions>
<exclusion>
<groupId>io.swagger</groupId>
<artifactId>swagger-annotations</artifactId>
</exclusion>
<exclusion>
<groupId>io.swagger</groupId>
<artifactId>swagger-models</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--防止进入swagger页面报类型转换错误，排除2.9.2中的引用，手动增加1.5.21版本-->
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-annotations</artifactId>
<version>1.5.21</version>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-models</artifactId>
<version>1.5.21</version>
</dependency>
<!-- swagger2-UI-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>${swagger.version}</version>
</dependency>
<!--阿里 FastJson依赖-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>${fastjson.version}</version>
</dependency>
<!--代码生成器依赖-->
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>${freemarker.version}</version>
<scope>provided</scope>
</dependency>
<!--测试-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 安全框架 -->
<!-- <dependency>-->
<!-- <groupId>org.springframework.boot</groupId>-->
<!-- <artifactId>spring-boot-starter-security</artifactId>-->
<!-- </dependency>-->
<!-- https://mvnrepository.com/artifact/io.github.swagger2markup/swagger2markup -->
<dependency>
<groupId>io.github.swagger2markup</groupId>
<artifactId>swagger2markup</artifactId>
<version>1.3.3</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>io.github.swagger2markup</groupId>
<artifactId>swagger2markup-maven-plugin</artifactId>
<version>1.2.0</version>
<configuration>
<!--此处端口一定要是当前项目启动所用的端口-->
<swaggerInput>http://localhost:8080/v2/api-docs?group=api</swaggerInput>
<outputDir>src/docs/asciidoc/generated/all</outputDir>
<config>
<!-- 除了ASCIIDOC之外，还有MARKDOWN和CONFLUENCE_MARKUP可选 -->
<swagger2markup.markupLanguage>ASCIIDOC</swagger2markup.markupLanguage>
</config>
</configuration>
</plugin>
<plugin>
<groupId>org.asciidoctor</groupId>
<artifactId>asciidoctor-maven-plugin</artifactId>
<version>1.5.3</version>
<!-- Include Asciidoctor PDF for pdf generation -->
<dependencies>
<dependency>
<groupId>org.asciidoctor</groupId>
<artifactId>asciidoctorj-pdf</artifactId>
<version>1.5.0-alpha.10.1</version>
</dependency>
<dependency>
<groupId>org.jruby</groupId>
<artifactId>jruby-complete</artifactId>
<version>1.7.21</version>
</dependency>
</dependencies>
<!-- Configure generic document generation settings -->
<configuration>
<sourceDirectory>src/docs/asciidoc/generated/all</sourceDirectory>
<sourceHighlighter>coderay</sourceHighlighter>
<attributes>
<toc>left</toc>
</attributes>
</configuration>
<!-- Since each execution can only handle one backend, run
separate executions for each desired output type -->
<executions>
<execution>
<id>output-html</id>
<phase>generate-resources</phase>
<goals>
<goal>process-asciidoc</goal>
</goals>
<configuration>
<backend>html5</backend>
<outputDirectory>src/docs/asciidoc/html</outputDirectory>
</configuration>
</execution>
<execution>
<id>output-pdf</id>
<phase>generate-resources</phase>
<goals>
<goal>process-asciidoc</goal>
</goals>
<configuration>
<backend>pdf</backend>
<outputDirectory>src/docs/asciidoc/pdf</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

Answer 1

First, you can try what suggested here.
Then, since that jar (Maven page), need a specific repository, you could try adding this code in your pom.xml
<repositories>
<repository>
<id>Spring</id>
<name>Spring</name>
<url>https://repo.spring.io/plugins-release/</url>
</repository>
</repositories>
Hope it helps.