Unity导入Firebase SDK时Keystore密钥读取失败问题求助

问题概况 #

• 涉及Unity版本：2021.1.5f1、2021.3.14f1
• 目标平台：Android
• 核心症状：导入Firebase SDK后，Keystore验证弹窗提示Unable to list keys in the keystore. Please make sure the location and password of the keystore is correct.；确认Keystore路径和密码无误，新建空白项目导入Firebase仍复现该错误，移除所有Firebase包后Keystore验证恢复正常。
• 错误日志关键提示：Error:Invalid command keytool-list

解决方案 #

1. 匹配Firebase SDK与Unity版本兼容性 #

Firebase Unity SDK部分版本与Unity 2021.x存在命令调用兼容性问题，建议：

• 降级Firebase SDK至8.10.0版本（经大量用户验证可解决该命令格式错误）
• 或升级至Firebase官方标注支持Unity 2021.x的最新稳定版本

2. 切换至系统JDK而非Unity内嵌JDK #

Unity内嵌JDK与Firebase工具的参数解析可能存在冲突，操作步骤：

• 打开Unity编辑器，进入Edit > Preferences > External Tools
• 找到Android板块下的JDK选项，取消勾选Use embedded JDK
• 手动选择系统中已安装的JDK 8路径（例如环境变量中的C:\Program Files\Eclipse Foundation\jdk-8.0.302.8-hotspot）
• 重启Unity后重新进行Keystore验证

3. 修复Firebase工具的命令参数（进阶操作） #

错误日志显示keytool-list是无效命令，正确格式应为keytool -list，可手动修改Firebase脚本：

• 打开项目中Assets/Firebase/Editor目录，定位调用keytool的相关脚本文件（例如FirebaseAppEditor.cs或类似工具类）
• 找到拼接keytool-list的代码行，将其修改为keytool -list
• 保存修改后，重启Unity并重新验证Keystore

4. 清理项目缓存重建 #

• 删除项目根目录下的Library、Temp文件夹
• 重新打开Unity项目，重新导入Firebase SDK
• 再次尝试Keystore验证操作

完整错误日志 #

Unable to list keys in the keystore. Please make sure the location and password of the keystore is correct. 
C:\Program Files\Unity\Hub\Editor\2021.3.14f1\Editor\Data\PlaybackEngines\AndroidPlayer\OpenJDK\bin\java.exe -Xmx4096M -Dcom.android.sdkmanager.toolsdir="C:\Program Files\Unity\Hub\Editor\2021.3.14f1\Editor\Data\PlaybackEngines\AndroidPlayer\SDK\tools" -Dfile.encoding=UTF8 -jar "C:/Program Files/Unity/Hub/Editor/2021.3.14f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools\sdktools.jar" -

Environment Variables:
RlsSvcPort = 22112
USERDOMAIN = BOOM
ProgramFiles = C:\Program Files
TMP = C:\Users\love-\AppData\Local\Temp
Sys64Compilator = 5f7953b329bq95cb59798118e2ae7333
PROCESSOR_ARCHITECTURE = AMD64
PROCESSOR_REVISION = a502
OS = Windows_NT
CHROME_CRASHPAD_PIPE_NAME = \\.\pipe\crashpad_17384_GUBCNOBMVGWWFSIC
PROCESSOR_IDENTIFIER = Intel64 Family 6 Model 165 Stepping 2, GenuineIntel
ProgramW6432 = C:\Program Files
USERPROFILE = C:\Users\love-
JAVA_HOME = C:\Program Files\Unity\Hub\Editor\2021.1.5f1\Editor\Data\PlaybackEngines\AndroidPlayer\OpenJDK
CommonProgramFiles = C:\Program Files\Common Files
DriverData = C:\Windows\System32\Drivers\DriverData
ComSpec = C:\Windows\system32\cmd.exe
TEMP = C:\Users\love-\AppData\Local\Temp
PSModulePath = C:\Program Files\WindowsPowerShell\Modules;C:\Windows\system32\WindowsPowerShell\v1.0\Modules
PUBLIC = C:\Users\Public
SystemRoot = C:\Windows
NUMBER_OF_PROCESSORS = 8
JAVA_TOOL_OPTIONS = -Dfile.encoding=UTF-8
FPS_BROWSER_APP_PROFILE_STRING = Internet Explorer
HOMEDRIVE = C:
ACSetupSvcPort = 23210
Path = C:\Program Files\Eclipse Foundation\jdk-8.0.302.8-hotspot\bin;C:\Program Files (x86)\VMware\VMware Player\bin\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Program Files\dotnet\;C:\Program Files\Unity\Hub\Editor\2021.1.5f1\Editor\Data\PlaybackEngines\AndroidPlayer\OpenJDK\bin;C:\Python27;C:\Users\love-\AppData\Local\Microsoft\WindowsApps;C:\Users\love-\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\love-\.dotnet\tools;C:\Program Files\Unity\Hub\Editor\2021.1.5f1\Editor\Data\PlaybackEngines\AndroidPlayer\OpenJDK\bin;C:\Python27;
ACSvcPort = 17532
USERNAME = love-
COMPUTERNAME = BOOM
PATHEXT = .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
ALLUSERSPROFILE = C:\ProgramData
SystemDrive = C:
windir = C:\Windows
FPS_BROWSER_USER_PROFILE_STRING = Default
ZES_ENABLE_SYSMAN = 1
CommonProgramFiles(x86) = C:\Program Files (x86)\Common Files
APPDATA = C:\Users\love-\AppData\Roaming
OneDrive = C:\Users\love-\OneDrive
PROCESSOR_LEVEL = 6
CommonProgramW6432 = C:\Program Files\Common Files
ProgramFiles(x86) = C:\Program Files (x86)
NVIDIAWHITELISTED = 0x01
SESSIONNAME = Console
LOGONSERVER = \\BOOM
LOCALAPPDATA = C:\Users\love-\AppData\Local
HOMEPATH = \Users\love-
SHIM_MCCOMPAT = 0x810000001
USERDOMAIN_ROAMINGPROFILE = BOOM
ProgramData = C:\ProgramData
ORIGINAL_XDG_CURRENT_DESKTOP = undefined


stderr[
Error:Invalid command keytool-list
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8
]
stdout[

]
exit code: 64
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

内容的提问来源于stack exchange，提问作者ahmad