Dropbox.Api 6.8.0 NuGet包安装失败求助：更换多个.NET框架版本仍报错
Hey Paul, sorry to hear you're stuck with this tricky installation issue—let's walk through some practical fixes to get this sorted out:
Double-check the exact framework support for Dropbox.Api 6.8.0
First, confirm what .NET Framework versions this specific package actually supports. Sometimes documented requirements don't match the package's internal assembly targets. In Visual Studio, go to your project's NuGet Package Manager, search forDropbox.Api, select version 6.8.0, and check the "Dependencies" section. If .NET 4.6.1 or 4.7.2 isn't listed here, that's the root cause—you'll need a different package version.Clear your NuGet cache
Corrupted cache files often trigger false compatibility errors. Try this:- Open the Package Manager Console (Tools > NuGet Package Manager > Package Manager Console)
- Run the command:
nuget locals all -clear - Restart Visual Studio and attempt the installation again.
Install an older, compatible version of Dropbox.Api
If 6.8.0 doesn't support your target framework, roll back to a version that does. Most pre-6.x releases of Dropbox.Api work well with .NET 4.6.1 and 4.7.2. Use this command in the Package Manager Console to install a specific version (adjust the number as needed):Install-Package Dropbox.Api -Version 5.1.0Confirm your project's framework is properly applied
Sometimes switching frameworks leaves behind stale build settings. To be sure:- Right-click your project > Properties > Application tab
- Verify the "Target framework" dropdown is set to .NET 4.7.2 (or 4.6.1)
- Clean your solution (Build > Clean Solution), rebuild it, then try installing the package again.
Manual DLL reference (last resort)
If all else fails, download the Dropbox.Api .nupkg file, extract it, and manually add references to the DLLs matching your framework (look in thelib/net461folder inside the extracted package). This skips NuGet's checks, so make sure you pick the right assembly.
内容的提问来源于stack exchange，提问作者user5708300
