Package.xml can't parsing

Dictionary App Builder
1

Hello,
I download and install all components, but when i want to download additional packages for SDK, command prompt shows these errors:
Installing Android SDK packages…

Installing “build-tools”…
Info: Parsing C:\sdk\tools\package.xml
Info: Parsing C:\sdk\tools\package.xml
Info: Failed to validate the XML for the repository at URL ‘https://dl.google.com/android/repository/repository2-1.xml/repository-12.xml’
Warning: Errors during XML parse:
Warning: White spaces are required between publicId and systemId.
Warning: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
Warning: javax.xml.bind.UnmarshalException

  • with linked exception:
    [org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.]
    Warning: Additionally, the fallback loader failed to parse the XML.
    Warning: White spaces are required between publicId and systemId.
    org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanExternalID(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.scanDoctypeDecl(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
    at org.xml.sax.helpers.XMLFilterImpl.parse(Unknown Source)
    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(Unknown Source)
    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(Unknown Source)
    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(Unknown Source)
    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(Unknown Source)
    at com.android.repository.impl.meta.SchemaModuleUtil.unmarshal(SchemaModuleUtil.java:196)
    at com.android.repository.impl.sources.RemoteListSourceProviderImpl.parse(RemoteListSourceProviderImpl.java:174)
    at com.android.repository.impl.sources.RemoteListSourceProviderImpl.getSources(RemoteListSourceProviderImpl.java:152)
    at com.android.repository.impl.manager.RemoteRepoLoaderImpl.fetchPackages(RemoteRepoLoaderImpl.java:94)
    at com.android.repository.impl.manager.RepoManagerImpl$LoadTask.run(RepoManagerImpl.java:550)
    at com.android.repository.api.RepoManager$DummyProgressRunner.runSyncWithProgress(RepoManager.java:397)
    at com.android.repository.impl.manager.RepoManagerImpl.load(RepoManagerImpl.java:364)
    at com.android.repository.api.RepoManager.loadSynchronously(RepoManager.java:290)
    at com.android.sdklib.tool.SdkManagerCli.installPackages(SdkManagerCli.java:325)
    at com.android.sdklib.tool.SdkManagerCli.run(SdkManagerCli.java:147)
    at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:119)
    at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:93)
    Warning: Failed to parse source list at https://dl.google.com/android/repository/addons_list-3.xml
    Warning: File C:\Users\Sadegh.android\repositories.cfg could not be loaded.
    Warning: Failed to find package build-tools;25.0.3

Installing “platform-tools”…
Info: Parsing C:\sdk\tools\package.xml
Info: Parsing C:\sdk\tools\package.xml
Info: Failed to validate the XML for the repository at URL ‘https://dl.google.com/android/repository/repository2-1.xml/repository-12.xml’
Warning: Errors during XML parse:
Warning: White spaces are required between publicId and systemId.
Warning: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
Warning: javax.xml.bind.UnmarshalException

  • with linked exception:
    [org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.]
    Warning: Additionally, the fallback loader failed to parse the XML.
    Warning: White spaces are required between publicId and systemId.
    org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanExternalID(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.scanDoctypeDecl(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
    at org.xml.sax.helpers.XMLFilterImpl.parse(Unknown Source)
    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(Unknown Source)
    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(Unknown Source)
    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(Unknown Source)
    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(Unknown Source)
    at com.android.repository.impl.meta.SchemaModuleUtil.unmarshal(SchemaModuleUtil.java:196)
    at com.android.repository.impl.sources.RemoteListSourceProviderImpl.parse(RemoteListSourceProviderImpl.java:174)
    at com.android.repository.impl.sources.RemoteListSourceProviderImpl.getSources(RemoteListSourceProviderImpl.java:152)
    at com.android.repository.impl.manager.RemoteRepoLoaderImpl.fetchPackages(RemoteRepoLoaderImpl.java:94)
    at com.android.repository.impl.manager.RepoManagerImpl$LoadTask.run(RepoManagerImpl.java:550)
    at com.android.repository.api.RepoManager$DummyProgressRunner.runSyncWithProgress(RepoManager.java:397)
    at com.android.repository.impl.manager.RepoManagerImpl.load(RepoManagerImpl.java:364)
    at com.android.repository.api.RepoManager.loadSynchronously(RepoManager.java:290)
    at com.android.sdklib.tool.SdkManagerCli.installPackages(SdkManagerCli.java:325)
    at com.android.sdklib.tool.SdkManagerCli.run(SdkManagerCli.java:147)
    at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:119)
    at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:93)
    Warning: Failed to parse source list at https://dl.google.com/android/repository/addons_list-3.xml
    Warning: File C:\Users\Sadegh.android\repositories.cfg could not be loaded.
    Warning: Failed to find package platform-tools

Installing “platform”…
Info: Parsing C:\sdk\tools\package.xml
Info: Parsing C:\sdk\tools\package.xml
Info: Failed to validate the XML for the repository at URL ‘https://dl.google.com/android/repository/repository2-1.xml/repository-12.xml’
Warning: Errors during XML parse:
Warning: White spaces are required between publicId and systemId.
Warning: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
Warning: javax.xml.bind.UnmarshalException

  • with linked exception:
    [org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.]
    Warning: Additionally, the fallback loader failed to parse the XML.
    Warning: White spaces are required between publicId and systemId.
    org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 62; White spaces are required between publicId and systemId.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanExternalID(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.scanDoctypeDecl(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
    at org.xml.sax.helpers.XMLFilterImpl.parse(Unknown Source)
    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(Unknown Source)
    at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(Unknown Source)
    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(Unknown Source)
    at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(Unknown Source)
    at com.android.repository.impl.meta.SchemaModuleUtil.unmarshal(SchemaModuleUtil.java:196)
    at com.android.repository.impl.sources.RemoteListSourceProviderImpl.parse(RemoteListSourceProviderImpl.java:174)
    at com.android.repository.impl.sources.RemoteListSourceProviderImpl.getSources(RemoteListSourceProviderImpl.java:152)
    at com.android.repository.impl.manager.RemoteRepoLoaderImpl.fetchPackages(RemoteRepoLoaderImpl.java:94)
    at com.android.repository.impl.manager.RepoManagerImpl$LoadTask.run(RepoManagerImpl.java:550)
    at com.android.repository.api.RepoManager$DummyProgressRunner.runSyncWithProgress(RepoManager.java:397)
    at com.android.repository.impl.manager.RepoManagerImpl.load(RepoManagerImpl.java:364)
    at com.android.repository.api.RepoManager.loadSynchronously(RepoManager.java:290)
    at com.android.sdklib.tool.SdkManagerCli.installPackages(SdkManagerCli.java:325)
    at com.android.sdklib.tool.SdkManagerCli.run(SdkManagerCli.java:147)
    at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:119)
    at com.android.sdklib.tool.SdkManagerCli.main(SdkManagerCli.java:93)
    Warning: Failed to parse source list at https://dl.google.com/android/repository/addons_list-3.xml
    Warning: File C:\Users\Sadegh.android\repositories.cfg could not be loaded.
    Warning: Failed to find package platforms;android-21

Press any key to continue . . .

What should I do?

2

This looks to be a network connection issue, preventing your computer from accessing the xml data files which are needed to download the packages, e.g. https://dl.google.com/android/repository/repository2-1.xml/repository-12.xml.

Could this be due to a firewall, an antivirus program or a proxy server?