经验总结：Could not resolve placeholder ‘config.info’ in value "${config.info},对于这种无法注入问题，一定是配置文件出现问题，有几种可能：

1. 配置文件格式写错
2. 文件格式写错
3. 没有按照命名规范配置配置文件

以下是报错信息：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-06-30 16:01:24.896 ERROR 32660 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.nacosController': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'config.info' in value "${config.info}"
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:405) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:359) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$568/11974505.getObject(Unknown Source) ~[na:na]
	at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:389) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
	at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:186) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:356) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1108) ~[spring-context-5.2.2.RELEASE.jar:5.2.2.RELEASE]
	at org.springframework.cloud.context.scope.refresh.RefreshScope.eagerlyInitialize(RefreshScope.java:127) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
	at org.springframework.cloud.context.scope.refresh.RefreshScope.start(RefreshScope.java:118) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
	at org.springframework.cloud.context.scope.refresh.RefreshScope.onApplicationEvent(RefreshScope.java:112) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]
	at org.springframework.cloud.context.scope.refresh.RefreshScope.onApplicationEvent(RefreshScope.java:66) ~[spring-cloud-context-2.2.1.RELEASE.jar:2.2.1.RELEASE]

造成的原因是小编不小心将配置文件命名方式写错

Data ID: nacos-config-client.dev.yaml
正确命名方式应该是：
${
    
    spring.application.name}-${
    
    spring.profile.active}.${
    
    spring.cloud.nacos.config.file-extension}

重新按照命名方式创建即可

nacos-config-client-dev.yaml