发布apk遇见这个问题，大佬帮忙看一下，谢谢了【unity吧】_百度贴吧
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发布apk遇见这个问题，大佬帮忙看一下，谢谢了收藏
CommandInvokationFailure: Failed to build apk.H:/java\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir=&H:/andorid-sdk1\tools& -Dfile.encoding=UTF8 -jar &G:\unity3d\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar& -stderr[Exception in thread &main& java.lang.reflect.InvocationTargetException
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:564)
at SDKMain.main(SDKMain.java:130)Caused by: java.lang.NoClassDefFoundError: sun/misc/BASE64Encoder
at com.android.sdklib.internal.build.SignedJarBuilder.&init&(SignedJarBuilder.java:177)
at com.android.sdklib.build.ApkBuilder.init(ApkBuilder.java:446)
at com.android.sdklib.build.ApkBuilder.&init&(ApkBuilder.java:422)
at com.android.sdklib.build.ApkBuilder.&init&(ApkBuilder.java:362)
at UnityApkBuilder.&init&(UnityApkBuilder.java:214)
at UnityApkBuilder.main(UnityApkBuilder.java:34)
... 5 moreCaused by: java.lang.ClassNotFoundException: sun.misc.BASE64Encoder
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:466)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:563)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
... 11 more]stdout[]exit code: 1UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)UnityEditor.Android.AndroidSDKTools.RunCommandInternal (System.String javaExe, System.String sdkToolsDir, System.String[] sdkToolCommand, Int32 memoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)UnityEditor.Android.AndroidSDKTools.RunCommandSafe (System.String javaExe, System.String sdkToolsDir, System.String[] sdkToolCommand, Int32 memoryMB, System.String workingdir, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)UnityEditor.HostView:OnGUI()
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【悬赏金币】回答本帖问题，作者11_Nicky_18将赠送您 5 个金币
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好心人帮我做一下这个题呗，谢谢啦！已有1人参与
好心人帮我做一下这个题呗，谢谢啦！
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引用回帖:: Originally posted by 11_Nicky_18 at
亲，关键是前两问，期望和方差我也会啦，还是要谢谢你啊！... 我的亲，wiki 网页上可查到。
(文坛精英)
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【答案】应助回帖
感谢参与，应助指数 +1
Xi服从（0,1）分布 → E(Xi^2)=D(Xi)=1;E(∑Xi^2)=∑E(Xi^2)=n
Xn都是独立的而且服从N(0,1)
D(Xn^2)=E(Xn^4)-E(Xn^2)=3-1=2
设X=X1^2+X2^2+X3^2+...+Xn^2& &//&&X服从自由度为N的卡方分布
& &那么D(X)=D(X1^2)+D(X2^2)+...+D(Xn^2) 因为Xn独立
& && && & =2*n
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引用回帖:: Originally posted by feixiaolin at
http://zhidao.baidu.com/link?url=PdlNv1wdqo4Ar7XfafUdm0JEhmN-hGlJ-rnSnpnGyfEL3zLjHoB0SnqKJz8zDGOtO1_mhDKzIZRsGUOXMyJY3K
Xi服从（0,1）分布 → E(Xi^2)=D(Xi)=1;E(∑Xi^2)=∑E(Xi^2)=n
http://jhs87930 ... 亲，关键是前两问，期望和方差我也会啦，还是要谢谢你啊！
欢迎交流！
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有没有大佬帮忙解决一下这个问题
restartedMain] t.m.s.annotation.MapperScannerRegistrar
: 只有 Spring Boot 环境中可以通过 Environment(配置文件,环境变量,运行参数等方式) 配置通用 Mapper，其他环境请通过 @MapperScan 注解中的 mapperHelperRef 或 properties 参数进行配置!如果你使用 tk.mybatis.mapper.session.Configuration 配置的通用 Mapper，你可以忽略该错误!
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at tk.mybatis.spring.mapper.SpringBootBindUtil$SpringBoot2Bind.bind(SpringBootBindUtil.java:133) ~[mapper-spring-1.0.0.jar:na]
at tk.mybatis.spring.mapper.SpringBootBindUtil.bind(SpringBootBindUtil.java:58) ~[mapper-spring-1.0.0.jar:na]
at tk.mybatis.spring.mapper.ClassPathMapperScanner.setMapperProperties(ClassPathMapperScanner.java:274) ~[mapper-spring-1.0.0.jar:na]
at tk.mybatis.spring.annotation.MapperScannerRegistrar.registerBeanDefinitions(MapperScannerRegistrar.java:103) ~[mapper-spring-1.0.0.jar:na]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.lambda$loadBeanDefinitionsFromRegistrars$1(ConfigurationClassBeanDefinitionReader.java:357) [spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at java.util.LinkedHashMap.forEach(LinkedHashMap.java:684) ~[na:1.8.0_121]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsFromRegistrars(ConfigurationClassBeanDefinitionReader.java:356) [spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:144) [spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:117) [spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:328) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:233) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) ~[spring-context-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at com.sszy.ShanYuanAppApplication.main(ShanYuanAppApplication.java:13) ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.0.1.RELEASE.jar:2.0.1.RELEASE]
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at tk.mybatis.spring.mapper.SpringBootBindUtil$SpringBoot2Bind.bind(SpringBootBindUtil.java:125) ~[mapper-spring-1.0.0.jar:na]
... 26 common frames omitted
Caused by: org.springframework.boot.context.properties.bind.BindException: Failed to bind properties under 'mapper.mappers' to java.util.List&
at org.springframework.boot.context.properties.bind.Binder.handleBindError(Binder.java:250) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:226) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.lambda$bindBean$4(Binder.java:334) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.JavaBeanBinder.bind(JavaBeanBinder.java:73) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.JavaBeanBinder.bind(JavaBeanBinder.java:62) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.JavaBeanBinder.bind(JavaBeanBinder.java:54) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.lambda$null$5(Binder.java:342) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_121]
at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1351) ~[na:1.8.0_121]
at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126) ~[na:1.8.0_121]
at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498) ~[na:1.8.0_121]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485) ~[na:1.8.0_121]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_121]
at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152) ~[na:1.8.0_121]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_121]
at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464) ~[na:1.8.0_121]
at org.springframework.boot.context.properties.bind.Binder.lambda$bindBean$6(Binder.java:343) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder$Context.withIncreasedDepth(Binder.java:442) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder$Context.withBean(Binder.java:428) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder$Context.access$400(Binder.java:382) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.bindBean(Binder.java:340) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.bindObject(Binder.java:279) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:221) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:210) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:166) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:153) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
... 31 common frames omitted
Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.List&]
at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:321) ~[spring-core-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:194) ~[spring-core-5.0.5.RELEASE.jar:5.0.5.RELEASE]
at org.springframework.boot.context.properties.bind.BindConverter$CompositeConversionService.convert(BindConverter.java:162) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.BindConverter.convert(BindConverter.java:96) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.IndexedElementsBinder.convert(IndexedElementsBinder.java:143) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.IndexedElementsBinder.bindIndexed(IndexedElementsBinder.java:84) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.IndexedElementsBinder.bindIndexed(IndexedElementsBinder.java:70) ~[spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.context.properties.bind.CollectionBinder.bindAg
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org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.List&]
说明你的表中字段有个string类型的，但是你用的是list类型，要么写个转换器，要么用string
@Converter
public class ArrayToStringConverter implements AttributeConverter&String[], String& {
public String convertToDatabaseColumn(String[] attribute) {
return StringUtils.join(attribute,",");
public String[] convertToEntityAttribute(String dbData) {
return dbData.split(",");
@Convert(converter = ArrayToStringConverter.class)
private String[]
转换器没有找到的异常，说明你定义的转换器没有初始化。
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