React native 如何将HTML转换为pdf并在外部存储(Android和IOS)中下载?

React native 如何将HTML转换为pdf并在外部存储(Android和IOS)中下载?,react-native,html-to-pdf,React Native,Html To Pdf,我正在制作react native的最新版本。我正在尝试使用这个库将html转换成pdf。但是安装后会出现很多错误 错误: Execution failed for task ':app:checkDebugDuplicateClasses'. > 1 exception was raised by workers: java.lang.RuntimeException: Duplicate class org.spongycastle.crypto.PasswordConverter f

我正在制作react native的最新版本。我正在尝试使用这个库将html转换成pdf。但是安装后会出现很多错误

错误:

Execution failed for task ':app:checkDebugDuplicateClasses'.
> 1 exception was raised by workers:
java.lang.RuntimeException: Duplicate class org.spongycastle.crypto.PasswordConverter found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and core-1.58.0.0.jar (com.madgag.spongycastle:core:1.58.0.0)
Duplicate class org.spongycastle.crypto.PasswordConverter$1 found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and core-1.58.0.0.jar (com.madgag.spongycastle:core:1.58.0.0)
Duplicate class org.spongycastle.crypto.PasswordConverter$2 found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and core-1.58.0.0.jar (com.madgag.spongycastle:core:1.58.0.0)
Duplicate class org.spongycastle.crypto.PasswordConverter$3 found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and core-1.58.0.0.jar (com.madgag.spongycastle:core:1.58.0.0)
Duplicate class org.spongycastle.crypto.util.DERMacData found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and core-1.58.0.0.jar (com.madgag.spongycastle:core:1.58.0.0)
Duplicate class org.spongycastle.crypto.util.DERMacData$Type found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and core-1.58.0.0.jar (com.madgag.spongycastle:core:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.asymmetric.RSA found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.asymmetric.RSA$Mappings found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.asymmetric.rsa.PSSSignatureSpi found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.asymmetric.rsa.PSSSignatureSpi$SHA256withRSA found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.symmetric.AES found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.symmetric.AES$AlgParamsGCM found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.symmetric.AES$ECB found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.symmetric.AES$ECB$1 found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
Duplicate class org.spongycastle.jcajce.provider.symmetric.AES$Mappings found in modules classes.jar (com.nds.threeds:threedssdk-release:1.1.17) and prov-1.58.0.0.jar (com.madgag.spongycastle:prov:1.58.0.0)
要求: 将html转换为pdf格式并存储在手机的外部存储器中。(Android和ISO)

请告诉我怎么做?以及如何在指定位置保存pdf