我也有同样的问题，升级4.0.74提示不能下载

Hello, you need to redownload the Spine installer from your personal license page. If you lost the link to it you can retrieve it here:
您好，您需要从个人许可证页面重新下载Spine安装程序。 如果丢失了指向它的链接，则可以在这里进行检索：
Spine: License Recovery

The new installer should be able to automatically log you out from the old version.
新的安装程序应该能够自动将您从旧版本中注销。

重新下载并安装了3.8.99之后，设置为最新版，勾选了beta更新，仍然没有提示4.0的版本

试用版的4.0.74在网页上有下载，pro版的反倒找不到任何地方可以直接下载，邮件中的是3.8.99

你好，

请尝试从启动器而不是Spine中选择“最新Beta”。
故障排除页面的这一部分可能会有所帮助：
Spine故障排除: 过时的Spine版本

Hello,

Please try to select "latest beta" from the launcher and not from Spine.
This part of the troubleshooting page may help:
Spine Troubleshooting: Outdated Spine version

提到的方法都尝试过了，现在只能寄希望于正式版？测试版没有独立的安装文件可以提供吗，谢谢

Could you post your Spine log when this happens please?
发生这种情况时，您可以张贴您的Spine日志吗？

Spine Launcher 4.0.22
Esoteric Software LLC (C) 2013-2020 | http://esotericsoftware.com
Windows 10 Education amd64 10.0
NVIDIA Corporation, GeForce GTX 1060 6GB/PCIe/SSE2, 4.6.0 NVIDIA 456.71
Downloading: Spine 4.0.74-beta Professional
ERROR: Unable to download: Spine installation out of date. Please reinstall Spine.
[error]
[caller]
at s.Ggr.B(:421)
at s.Ggr.S(:287)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
at s.LDO.B(:200)
at s.FpF.B(:400)
at s.LDO.Z(:103)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Cause: [io] Server returned HTTP response code: 400 for URL: https://jpapi.esotericsoftware.com:443
at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstanceWithCaller(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
at java.security.AccessController.doPrivileged(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at s.LDO.B(:149) ...
Cause: [io] Server returned HTTP response code: 400 for URL: https://jpapi.esotericsoftware.com:443
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
at s.LDO.(:272)
at s.LDO.B(_:118) ...

用三台电脑安装过，一样的错误

请从您的许可证页面下载并安装最新的Spine启动器。
Please download and install the latest Spine launcher from your license page.

Mario लिखा

请从您的许可证页面下载并安装最新的Spine启动器。
Please download and install the latest Spine launcher from your license page.

这好像是唯一能获取spine的渠道，完全行不通，你们还 有别的渠道吗？

对不起，从你的Spine许可证页面下载Spine是获得Spine安装程序的唯一途径。我希望我们能在中国境内有一个服务器，但这对一家外国公司来说是非常困难的。
Sorry, downloading Spine from your Spine license page is the only way to get the Spine installer. I wish we could have a server inside China, but that is very difficult for a foreign company.

如果你找不到你的Spine许可证页面:
If you can't find your Spine license page:
找回Spine许可证

Nate लिखा

对不起，从你的Spine许可证页面下载Spine是获得Spine安装程序的唯一途径。我希望我们能在中国境内有一个服务器，但这对一家外国公司来说是非常困难的。
Sorry, downloading Spine from your Spine license page is the only way to get the Spine installer. I wish we could have a server inside China, but that is very difficult for a foreign company.

如果你找不到你的Spine许可证页面:
If you can't find your Spine license page:
找回Spine许可证

我是从许可页面得到的安装包，但是问题依旧，如果可以的话建议你们在许可页面也增加一个beta版本的安装包直接下载

没有测试版的Spine启动器。你的Spine许可证页面上的最新启动器不应该显示这个错误。不知何故，你一定有一个较旧的启动器。你的日志文件的第一行显示:
There is no beta version of the Spine launcher. The latest launcher from your Spine license page should not show that error. Somehow you must have an older launcher. The first line of your log file shows:

Spine Launcher 4.0.22

当你有最新的，应该显示出来:
When you have the latest, that should show:

Spine Launcher 4.0.24