Cloud load failed with error code 7 using Unity GoolePlayGames plugin - unity3d

Question

I get the following log during on-device debugging
Error:
*** [Play Games Plugin DLL] ERROR: Cloud load failed with status code 7
Basically the OnStateLoaded() callback function always returns the boolean success = false and I can't figure out the reason why.
All that the plugin debugging logs mention is "Cloud load failed with status code 7".

Answer 1

According to the android doc, 7 is a generic "developer error", see https://developer.android.com/reference/com/google/android/gms/appstate/AppStateStatusCodes.html#STATUS_DEVELOPER_ERROR
I tried a quick sample and everything worked ok. Here are my steps:
Created a new game in the play console
(https://play.google.com/apps/publish)
Made sure Saved Games is set
to ON
Linked an Android Application Remembering the application ID
(the number after the title) and the package ID
Created a new project in Unity
Added the play games plugin (Assets/Import Package.../Custom
Package)
Set the application ID (Google Play Games/Android Setup...)
Switched the platform to Android (File/Build Settings...)
Set the player settings (bundle identifier and the keystore info)
Added a new script component to the camera
Saved everything and hit build and run.
Here are the contents:
using UnityEngine;
using System.Collections;
using GooglePlayGames;
using GooglePlayGames.BasicApi;
using System;
public class SaveSample : MonoBehaviour {
System.Action<bool> mAuthCallback;
GameData slot0;
void Start () {
slot0 = new GameData(0,"waiting for login....");
mAuthCallback = (bool success) => {
if (success) {
Debug.Log("Authentication was successful!");
slot0.Data =" loading....";
slot0.LoadState();
}
else {
Debug.LogWarning("Authentication failed!");
}
};
// make Play Games the default social implementation
PlayGamesPlatform.Activate();
// enable debug logs
PlayGamesPlatform.DebugLogEnabled = true;
//Login explicitly for this sample, usually this would be silent
PlayGamesPlatform.Instance.Authenticate(mAuthCallback, false);
}
protected void OnGUI() {
Screen.fullScreen = true;
int buttonHeight = Screen.height / 20;
int buttonWidth = Screen.width / 5;
GUI.skin.label.fontSize = 60;
GUI.skin.button.fontSize = 60;
Rect statusRect = new Rect(10,20,Screen.width,100);
Rect dataRect = new Rect( 10, 150, Screen.width,100);
Rect b1Rect = new Rect(10, 400, buttonWidth, buttonHeight);
Rect b2Rect = new Rect(b1Rect.x + 20 + buttonWidth,
b1Rect.y, buttonWidth, buttonHeight);
if(!Social.localUser.authenticated) {
if(GUI.Button(b1Rect, "Signin")) {
Social.localUser.Authenticate(mAuthCallback);
}
}
else {
// logged in, so show the load button and the contents of the saved data.
if(GUI.Button(b1Rect, "Load")) {
slot0.LoadState();
}
GUI.Label(dataRect, slot0.Data);
}
if(GUI.Button(b2Rect, "Save")) {
// just save a string, incrementing the number on the end.
int idx = slot0.Data.IndexOf("_");
if (idx > 0) {
int val = Convert.ToInt32(slot0.Data.Substring(idx+1));
val++;
slot0.Data = "Save_" + val;
}
else {
slot0.Data = "Save_0";
}
slot0.SaveState();
}
GUI.Label(statusRect, slot0.State);
}
// Class to handle save/load callbacks.
public class GameData : OnStateLoadedListener {
int slot;
string data;
string state;
public GameData(int slot, string data) {
this.slot = slot;
this.data = data;
this.state = "Initialized, modified";
}
public void LoadState() {
this.state += ", loading";
((PlayGamesPlatform)Social.Active).LoadState(0, this);
}
public void SaveState() {
byte[] bytes = new byte[data.Length * sizeof(char)];
System.Buffer.BlockCopy(data.ToCharArray(), 0, bytes, 0, bytes.Length);
this.state += ", saving";
((PlayGamesPlatform) Social.Active).UpdateState(slot, bytes, this);
}
public void OnStateLoaded(bool success, int slot, byte[] data) {
if (success) {
Debug.Log ("Save game slot : " + slot + " loaded: " + data);
if (data != null) {
char[] chars = new char[data.Length / sizeof(char)];
System.Buffer.BlockCopy(data, 0, chars, 0, data.Length);
this.data = new string(chars);
this.state = "loaded";
} else {
Debug.Log ("Saved data is null");
this.data = "";
this.state = "loaded, but empty";
}
} else {
// handle failure
Debug.LogWarning ("Save game slot : " + slot + " failed!: ");
this.data = "";
this.state = "loading failed!";
}
}
public byte[] OnStateConflict(int slot, byte[] local, byte[] server) {
// resolve conflict and return a byte[] representing the
// resolved state.
Debug.LogWarning("Conflict in saved data!");
state = "conflicted";
// merge or resolve using app specific logic, here
byte[] resolved = local.Length > server.Length ? local : server;
char[] chars = new char[resolved.Length / sizeof(char)];
System.Buffer.BlockCopy(resolved, 0, chars, 0, resolved.Length);
this.data = new string(chars);
return resolved;
}
public void OnStateSaved(bool success, int slot) {
Debug.Log ("Save game slot : " + slot + " success: " + success);
state = "saved";
}
public string Data {
get {
return data;
}
set {
data = value;
state += ", modified";
}
}
public int Slot {
get {
return slot;
}
}
public string State {
get {
return state;
}
}
}
}

Answer 2

The error code 7 is because the Cloud Save API has been deprecated and is only currently accessible to existing games that have used the API. The Unity plugin version 0.9.11 has been updated to use the SavedGames API.
I tried a quick sample and everything worked ok. Here are my steps:
Created a new game in the play console
(https://play.google.com/apps/publish)
Made sure Saved Games is set to ON
Linked an Android Application Remembering the application ID
(the number after the title) and the package ID Created a new
project in Unity
Added the play games plugin (Assets/Import
Package.../Custom Package)
Set the application ID (Google Play
Games/Android Setup...)
Switched the platform to Android (File/Build
Settings...)
Set the player settings (bundle identifier and the
keystore info)
Added a new script component to the camera Saved
everything and hit build and run.
Here is my script:
using UnityEngine;
using System.Collections;
using GooglePlayGames;
using GooglePlayGames.BasicApi;
using System;
using GooglePlayGames.BasicApi.SavedGame;
public class SaveSample : MonoBehaviour {
System.Action<bool> mAuthCallback;
GameData slot0;
bool mSaving;
private Texture2D mScreenImage;
// Use this for initialization
void Start () {
slot0 = new GameData("New game");
mAuthCallback = (bool success) => {
if (success) {
Debug.Log("Authentication was successful!");
slot0.State = "Click load or save";
}
else {
Debug.LogWarning("Authentication failed!");
}
};
PlayGamesClientConfiguration config = new PlayGamesClientConfiguration.Builder()
.EnableSavedGames()
.Build();
PlayGamesPlatform.InitializeInstance(config);
// Activate the Play Games platform. This will make it the default
// implementation of Social.Active
PlayGamesPlatform.Activate();
// enable debug logs (note: we do this because this is a sample; on your production
// app, you probably don't want this turned on by default, as it will fill the user's
// logs with debug info).
PlayGamesPlatform.DebugLogEnabled = true;
//Login explicitly for this sample, usually this would be silent
PlayGamesPlatform.Instance.Authenticate(mAuthCallback, false);
}
public void CaptureScreenshot() {
mScreenImage = new Texture2D(Screen.width, Screen.height);
mScreenImage.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
mScreenImage.Apply();
}
protected virtual void OnGUI() {
Screen.fullScreen = true;
int buttonHeight = Screen.height / 20;
int buttonWidth = Screen.width / 5;
GUI.skin.label.fontSize = 60;
GUI.skin.button.fontSize = 60;
Rect statusRect = new Rect(10,20,Screen.width,200);
Rect dataRect = new Rect( 10, 250, Screen.width,100);
Rect b1Rect = new Rect(10, 800, buttonWidth, buttonHeight);
Rect b2Rect = new Rect(b1Rect.x + 20 + buttonWidth, b1Rect.y, buttonWidth, buttonHeight);
if(!Social.localUser.authenticated) {
if(GUI.Button(b1Rect, "Signin")) {
Social.localUser.Authenticate(mAuthCallback);
}
}
else {
if(GUI.Button(b1Rect, "Load")) {
mSaving = false;
((PlayGamesPlatform)Social.Active).SavedGame.ShowSelectSavedGameUI("Select game to load",
4,false,false,SavedGameSelected);
}
GUI.Label(dataRect, slot0.Data);
}
if(GUI.Button(b2Rect, "Save")) {
int idx = slot0.Data.IndexOf("_");
if (idx > 0) {
int val = Convert.ToInt32(slot0.Data.Substring(idx+1));
val++;
slot0.Data = "Save_" + val;
}
else {
slot0.Data = "Save_0";
}
mSaving = true;
CaptureScreenshot();
((PlayGamesPlatform)Social.Active).SavedGame.ShowSelectSavedGameUI("Save game progress",
4,true,true,SavedGameSelected);
}
GUI.Label(statusRect, slot0.State);
}
public void SavedGameSelected(SelectUIStatus status, ISavedGameMetadata game) {
if (status == SelectUIStatus.SavedGameSelected) {
string filename = game.Filename;
Debug.Log("opening saved game: " + game);
if(mSaving && (filename == null || filename.Length == 0)) {
filename = "save" + DateTime.Now.ToBinary();
}
if (mSaving) {
slot0.State = "Saving to " + filename;
}
else {
slot0.State = "Loading from " + filename;
}
//open the data.
((PlayGamesPlatform)Social.Active).SavedGame.OpenWithAutomaticConflictResolution(filename,
DataSource.ReadCacheOrNetwork,
ConflictResolutionStrategy.UseLongestPlaytime,
SavedGameOpened);
} else {
Debug.LogWarning("Error selecting save game: " + status);
}
}
public void SavedGameOpened(SavedGameRequestStatus status, ISavedGameMetadata game) {
if(status == SavedGameRequestStatus.Success) {
if( mSaving) {
slot0.State = "Opened, now writing";
byte[] pngData = (mScreenImage!=null) ?mScreenImage.EncodeToPNG():null;
Debug.Log("Saving to " + game);
byte[] data = slot0.ToBytes();
TimeSpan playedTime = slot0.TotalPlayingTime;
SavedGameMetadataUpdate.Builder builder = new
SavedGameMetadataUpdate.Builder()
.WithUpdatedPlayedTime(playedTime)
.WithUpdatedDescription("Saved Game at " + DateTime.Now);
if (pngData != null) {
Debug.Log("Save image of len " + pngData.Length);
builder = builder.WithUpdatedPngCoverImage(pngData);
}
else {
Debug.Log ("No image avail");
}
SavedGameMetadataUpdate updatedMetadata = builder.Build();
((PlayGamesPlatform)Social.Active).SavedGame.CommitUpdate(game,updatedMetadata,data,SavedGameWritten);
} else {
slot0.State = "Opened, reading...";
((PlayGamesPlatform)Social.Active).SavedGame.ReadBinaryData(game,SavedGameLoaded);
}
} else {
Debug.LogWarning("Error opening game: " + status);
}
}
public void SavedGameLoaded(SavedGameRequestStatus status, byte[] data) {
if (status == SavedGameRequestStatus.Success) {
Debug.Log("SaveGameLoaded, success=" + status);
slot0 = GameData.FromBytes(data);
} else {
Debug.LogWarning("Error reading game: " + status);
}
}
public void SavedGameWritten(SavedGameRequestStatus status, ISavedGameMetadata game) {
if(status == SavedGameRequestStatus.Success) {
Debug.Log ("Game " + game.Description + " written");
slot0.State = "Saved!";
} else {
Debug.LogWarning("Error saving game: " + status);
}
}
public class GameData {
private TimeSpan mPlayingTime;
private DateTime mLoadedTime;
string mData;
string mState;
static readonly string HEADER = "GDv1";
public GameData(string data) {
mData = data;
mState = "Initialized, modified";
mPlayingTime = new TimeSpan();
mLoadedTime = DateTime.Now;
}
public TimeSpan TotalPlayingTime {
get {
TimeSpan delta = DateTime.Now.Subtract(mLoadedTime);
return mPlayingTime.Add(delta);
}
}
public override string ToString () {
string s = HEADER + ":" + mData;
s += ":" + TotalPlayingTime.TotalMilliseconds;
return s;
}
public byte[] ToBytes() {
return System.Text.ASCIIEncoding.Default.GetBytes(ToString());
}
public static GameData FromBytes (byte[] bytes) {
return FromString(System.Text.ASCIIEncoding.Default.GetString(bytes));
}
public static GameData FromString (string s) {
GameData gd = new GameData("initializing from string");
string[] p = s.Split(new char[] { ':' });
if (!p[0].StartsWith(HEADER)) {
Debug.LogError("Failed to parse game data from: " + s);
return gd;
}
gd.mData = p[1];
double val = Double.Parse(p[2]);
gd.mPlayingTime = TimeSpan.FromMilliseconds(val>0f?val:0f);
gd.mLoadedTime = DateTime.Now;
gd.mState = "Loaded successfully";
return gd;
}
public string Data {
get {
return mData;
}
set {
mData = value;
mState += ", modified";
}
}
public string State {
get {
return mState;
}
set {
mState = value;
}
}
}
}