Silverlight项目加载问题 无法读取项目文件“SL1201.csproj”。

错误提示：无法读取项目文件“SL1201.csproj”。 C:\Users\xiaoxiangfeizi\Desktop\slMessage\SL1201\SL1201.csproj(128,3): 未找到导入的项目“C:\Program Files (x86)\MSBuild\Microsoft\Silverlight\v4.0\Microsoft.Silverlight.CSharp.targets”。请确认 声明中的路径正确，且磁盘上存在该文件。

 

解决办法：用记事本打开SL1201.csproj

<PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProductVersion>8.0.50727</ProductVersion>
    <SchemaVersion>2.0</SchemaVersion>
    <ProjectGuid>{7550E013-535B-47BB-B09A-545621461953}</ProjectGuid>
    <ProjectTypeGuids>{A1591282-1198-4647-A2B1-27E5FF5F6F3B};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
    <OutputType>Library</OutputType>
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>NjBestWayOA.Flow</RootNamespace>
    <AssemblyName>NjBestWayOA.Flow</AssemblyName>
    <TargetFrameworkIdentifier>Silverlight</TargetFrameworkIdentifier>
    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>                                           //将此处4.0改为3.0即可
    <SilverlightVersion>$(TargetFrameworkVersion)</SilverlightVersion>
    <SilverlightApplication>true</SilverlightApplication>
    <SupportedCultures>zh-Hans</SupportedCultures>
    <XapOutputs>true</XapOutputs>
    <GenerateSilverlightManifest>true</GenerateSilverlightManifest>
    <XapFilename>NjBestWayOA.Flow.xap</XapFilename>
    <SilverlightManifestTemplate>Properties\AppManifest.xml</SilverlightManifestTemplate>
    <SilverlightAppEntry>NjBestWayOA.Flow.App</SilverlightAppEntry>
    <TestPageFileName>NjBestWayOA.FlowTestPage.html</TestPageFileName>
    <CreateTestPage>true</CreateTestPage>
    <ValidateXaml>true</ValidateXaml>
    <EnableOutOfBrowser>false</EnableOutOfBrowser>
    <OutOfBrowserSettingsFile>Properties\OutOfBrowserSettings.xml</OutOfBrowserSettingsFile>
    <UsePlatformExtensions>false</UsePlatformExtensions>
    <ThrowErrorsInValidation>true</ThrowErrorsInValidation>
    <LinkedServerProject>
    </LinkedServerProject>
  </PropertyGroup>
  <!-- This property group is only here to support building this project using the
       MSBuild 3.5 toolset. In order to work correctly with this older toolset, it needs
       to set the TargetFrameworkVersion to v3.5 -->
  <PropertyGroup Condition="'$(MSBuildToolsVersion)' == '3.5'">
    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
  </PropertyGroup>

 

.