Failed to load property source from location 'classpath:/application.yml'

java.lang.IllegalStateException: Failed to load property source from location 'classpath:/application.yml'
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:545)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:494)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:464)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$null$7(ConfigFileApplicationListener.java:443)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$8(ConfigFileApplicationListener.java:443)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:440)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$0(ConfigFileApplicationListener.java:335)
	at org.springframework.boot.context.config.FilteredPropertySource.apply(FilteredPropertySource.java:54)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:323)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:214)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:198)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:188)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:176)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:345)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
	at com.htu.project001.wangyu.WangyuApplication.main(WangyuApplication.java:11)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.yaml.snakeyaml.reader.ReaderException: special characters are not allowed
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:211)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176)
	at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:136)
	at org.yaml.snakeyaml.scanner.ScannerImpl.scanPlain(ScannerImpl.java:2001)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchPlain(ScannerImpl.java:1044)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:399)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:558)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:217)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:239)
	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:230)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:218)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:239)
	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:230)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:218)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
	at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:239)
	at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:230)
	at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:218)
	at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
	at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:85)
	at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:125)
	at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:548)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:160)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:134)
	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75)
	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadDocuments(ConfigFileApplicationListener.java:562)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:518)
	... 30 common frames omitted
Process finished with exit code 0

上网搜索解决办法，是配置文件编码问题，但是由于我的配置文件编码没有错误，所以尝试删除配置文件注释，删除后，成功运行。