项目启动报错:Failed to load property source from location ‘classpath:/application.yml‘

原因有可能是你在yml文件里面写了注释 或者yml格式不对之类的

改掉就可以了 改掉就没有下面的这些报错了

14:43:27.730 [main] DEBUG org.springframework.boot.context.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/target/classes/, file:/C:/Study/SDK/javaSDK/jre/lib/charsets.jar, file:/C:/Study/SDK/javaSDK/jre/lib/deploy.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/access-bridge-64.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/cldrdata.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/dnsns.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/jaccess.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/jfxrt.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/localedata.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/nashorn.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/sunec.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/sunjce_provider.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/sunmscapi.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/sunpkcs11.jar, file:/C:/Study/SDK/javaSDK/jre/lib/ext/zipfs.jar, file:/C:/Study/SDK/javaSDK/jre/lib/javaws.jar, file:/C:/Study/SDK/javaSDK/jre/lib/jce.jar, file:/C:/Study/SDK/javaSDK/jre/lib/jfr.jar, file:/C:/Study/SDK/javaSDK/jre/lib/jfxswt.jar, file:/C:/Study/SDK/javaSDK/jre/lib/jsse.jar, file:/C:/Study/SDK/javaSDK/jre/lib/management-agent.jar, file:/C:/Study/SDK/javaSDK/jre/lib/plugin.jar, file:/C:/Study/SDK/javaSDK/jre/lib/resources.jar, file:/C:/Study/SDK/javaSDK/jre/lib/rt.jar, file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/LocalXml.zip, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.3.0.RELEASE/spring-boot-starter-web-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-starter/2.3.0.RELEASE/spring-boot-starter-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot/2.3.0.RELEASE/spring-boot-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.3.0.RELEASE/spring-boot-autoconfigure-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.3.0.RELEASE/spring-boot-starter-logging-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar, file:/C:/Users/Administrator/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar, file:/C:/Users/Administrator/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.13.2/log4j-to-slf4j-2.13.2.jar, file:/C:/Users/Administrator/.m2/repository/org/apache/logging/log4j/log4j-api/2.13.2/log4j-api-2.13.2.jar, file:/C:/Users/Administrator/.m2/repository/org/slf4j/jul-to-slf4j/1.7.30/jul-to-slf4j-1.7.30.jar, file:/C:/Users/Administrator/.m2/repository/jakarta/annotation/jakarta.annotation-api/1.3.5/jakarta.annotation-api-1.3.5.jar, file:/C:/Users/Administrator/.m2/repository/org/yaml/snakeyaml/1.26/snakeyaml-1.26.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.3.0.RELEASE/spring-boot-starter-json-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.11.0/jackson-databind-2.11.0.jar, file:/C:/Users/Administrator/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.11.0/jackson-annotations-2.11.0.jar, file:/C:/Users/Administrator/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.11.0/jackson-core-2.11.0.jar, file:/C:/Users/Administrator/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.11.0/jackson-datatype-jdk8-2.11.0.jar, file:/C:/Users/Administrator/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.11.0/jackson-datatype-jsr310-2.11.0.jar, file:/C:/Users/Administrator/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.11.0/jackson-module-parameter-names-2.11.0.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.3.0.RELEASE/spring-boot-starter-tomcat-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.35/tomcat-embed-core-9.0.35.jar, file:/C:/Users/Administrator/.m2/repository/org/glassfish/jakarta.el/3.0.3/jakarta.el-3.0.3.jar, file:/C:/Users/Administrator/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/9.0.35/tomcat-embed-websocket-9.0.35.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-web/5.2.6.RELEASE/spring-web-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-beans/5.2.6.RELEASE/spring-beans-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-webmvc/5.2.6.RELEASE/spring-webmvc-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-aop/5.2.6.RELEASE/spring-aop-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-context/5.2.6.RELEASE/spring-context-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-expression/5.2.6.RELEASE/spring-expression-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/boot/spring-boot-configuration-processor/2.3.0.RELEASE/spring-boot-configuration-processor-2.3.0.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/projectlombok/lombok/1.18.12/lombok-1.18.12.jar, file:/C:/Users/Administrator/.m2/repository/org/slf4j/slf4j-api/1.7.30/slf4j-api-1.7.30.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-core/5.2.6.RELEASE/spring-core-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/springframework/spring-jcl/5.2.6.RELEASE/spring-jcl-5.2.6.RELEASE.jar, file:/C:/Users/Administrator/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar, file:/C:/Users/Administrator/.m2/repository/com/alibaba/fastjson/1.2.68/fastjson-1.2.68.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/javacv/1.5.3/javacv-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/javacpp/1.5.3/javacpp-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/openblas/0.3.9-1.5.3/openblas-0.3.9-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/opencv/4.3.0-1.5.3/opencv-4.3.0-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/ffmpeg/4.2.2-1.5.3/ffmpeg-4.2.2-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/flycapture/2.13.3.31-1.5.3/flycapture-2.13.3.31-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/libdc1394/2.2.6-1.5.3/libdc1394-2.2.6-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/libfreenect/0.5.7-1.5.3/libfreenect-0.5.7-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/libfreenect2/0.2.0-1.5.3/libfreenect2-0.2.0-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/librealsense/1.12.4-1.5.3/librealsense-1.12.4-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/librealsense2/2.29.0-1.5.3/librealsense2-2.29.0-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/videoinput/0.200-1.5.3/videoinput-0.200-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/artoolkitplus/2.3.1-1.5.3/artoolkitplus-2.3.1-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/flandmark/1.07-1.5.3/flandmark-1.07-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/leptonica/1.79.0-1.5.3/leptonica-1.79.0-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/bytedeco/tesseract/4.1.1-1.5.3/tesseract-4.1.1-1.5.3.jar, file:/C:/Users/Administrator/.m2/repository/org/openjfx/javafx-graphics/11/javafx-graphics-11.jar, file:/C:/Users/Administrator/.m2/repository/org/openjfx/javafx-graphics/11/javafx-graphics-11-win.jar, file:/C:/Users/Administrator/.m2/repository/org/openjfx/javafx-base/11/javafx-base-11.jar, file:/C:/Users/Administrator/.m2/repository/org/openjfx/javafx-base/11/javafx-base-11-win.jar, file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/src/main/resources/lib/examples.jar, file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/src/main/resources/lib/jna.jar, file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/src/main/resources/lib/jave-1.0.2.jar, file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/src/main/resources/lib/ffch4j-18.12.02-SNAPSHOT.jar, file:/C:/Study/IDE%20ALL/test/ideaIU-2019.3.win(v2)/ideaIU-2019.3.win(v2)/lib/idea_rt.jar]
14:43:27.784 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.IllegalStateException: Failed to load property source from 'file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/target/classes/application.yml' (classpath:/application.yml)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:554)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:499)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:469)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$null$7(ConfigFileApplicationListener.java:448)
	at java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$8(ConfigFileApplicationListener.java:448)
	at java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:445)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$0(ConfigFileApplicationListener.java:348)
	at org.springframework.boot.context.config.FilteredPropertySource.apply(FilteredPropertySource.java:54)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:336)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:226)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:210)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:200)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:188)
	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:80)
	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:1237)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
	at com.py.Application.main(Application.java:17)
Caused by: org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:218)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:171)
	at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:126)
	at org.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.java:1177)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:287)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:195)
	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.checkNode(Composer.java:82)
	at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:123)
	at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:489)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:160)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:134)
	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75)
	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadDocuments(ConfigFileApplicationListener.java:608)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:524)
	... 25 common frames omitted
Caused by: java.nio.charset.MalformedInputException: Input length = 1
	at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
	at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
	at java.io.InputStreamReader.read(InputStreamReader.java:184)
	at org.yaml.snakeyaml.reader.UnicodeReader.read(UnicodeReader.java:125)
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:183)
	... 43 common frames omitted
java.lang.IllegalStateException: Failed to load property source from 'file:/C:/work/javaProject/vedio%20client/hkvideo/ClientDemo-NetBeansPro/target/classes/application.yml' (classpath:/application.yml)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:554)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:499)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:469)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$null$7(ConfigFileApplicationListener.java:448)
	at java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$8(ConfigFileApplicationListener.java:448)
	at java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:445)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$0(ConfigFileApplicationListener.java:348)
	at org.springframework.boot.context.config.FilteredPropertySource.apply(FilteredPropertySource.java:54)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:336)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:226)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:210)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:200)
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:188)
	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:80)
	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:1237)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
	at com.py.Application.main(Application.java:17)
Caused by: org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:218)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:171)
	at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:126)
	at org.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.java:1177)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:287)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:195)
	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.checkNode(Composer.java:82)
	at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:123)
	at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:489)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:160)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:134)
	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75)
	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadDocuments(ConfigFileApplicationListener.java:608)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:524)
	... 25 more
Caused by: java.nio.charset.MalformedInputException: Input length = 1
	at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
	at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
	at java.io.InputStreamReader.read(InputStreamReader.java:184)
	at org.yaml.snakeyaml.reader.UnicodeReader.read(UnicodeReader.java:125)
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:183)
	... 43 more