Caused by: com.typesafe.config.ConfigException$UnresolvedSubstitution: reference.conf @ jar:file:/home/FlinkIdeaDemo1.0.jar!/reference.conf: 875: Could not resolve substitution to a value:

Caused by: com.typesafe.config.ConfigException$UnresolvedSubstitution: reference.conf @ jar:file:/home/FlinkIdeaDemo-1.0.jar!/reference.conf: 875: Could not resolve substitution to a value: ${akka.stream.materializer}

 pom.xml configuration增加transmormer节点

<configuration>
                            <artifactSet>
                                <excludes>
                                    <exclude>com.google.code.findbugs:jsr305</exclude>
                                    <!--<exclude>org.slf4j:*</exclude>
                                    <exclude>log4j:*</exclude>-->
                                </excludes>
                            </artifactSet>
                            <filters>
                                <filter>
                                    <!-- Do not copy the signatures in the META-INF folder.
                                    Otherwise, this might cause SecurityExceptions when using the JAR. -->
                                    <artifact>*:*</artifact>
                                    <excludes>
                                        <exclude>META-INF/*.SF</exclude>
                                        <exclude>META-INF/*.DSA</exclude>
                                        <exclude>META-INF/*.RSA</exclude>
                                    </excludes>
                                </filter>
                            </filters>
                            <transformers>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>NCFlinkIdea</mainClass>
                                </transformer>
                                <transformer
                                        implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                    <resource>reference.conf</resource>
                                </transformer>
                            </transformers>
                        </configuration>