小编Jes*_*ter的帖子

我一直在努力关注Mongoose Population中的信息,但我得到了例外:

MissingSchemaError:尚未为模型"undefined"注册Schema.

我的代码是这样的:

mongoose = require('mongoose');
Schema = mongoose.Schema;
mongoose.connect(MONGO_SERVER);
ObjectId = Schema.ObjectId;

var FirstSchema = new Schema({
    label       : String
});
var SecondSchema = new Schema({
    first_id           : [{ type: mongoose.Schema.ObjectId, ref: 'First' }],
    type           : String,
    ...
});
var first= mongoose.model('First', FirstSchema);
var second= mongoose.model('Second', SecondSchema);

function test() {
    ...
    second.find({}).populate('first_id').exec(function(err,data){return true;});
    ...
}

并且错误发生在populate上,我已经多次调整它到论坛上发现的不同答案,我相信它会很简单,但是有人能指出我正确的方向吗？

干杯.

所以我升级了我的facebookConnectPlugin(cordova-plugin-facebook4/npmjs)以获得iOS支持,我的iOS版本现在正在编译 - 但现在我的Android不是.构建错误指出:

FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'project'.
> Could not resolve all dependencies for configuration ':_debugCompile'.
   > Could not find com.android.support:support-v4:23.2.0.
     Searched in the following locations:
         https://repo1.maven.org/maven2/com/android/support/support-v4/23.2.0/support-v4-23.2.0.pom
         https://repo1.maven.org/maven2/com/android/support/support-v4/23.2.0/support-v4-23.2.0.jar
         file:/android-sdk/extras/android/m2repository/com/android/support/support-v4/23.2.0/support-v4-23.2.0.pom
         file:/android-sdk/extras/android/m2repository/com/android/support/support-v4/23.2.0/support-v4-23.2.0.jar
         file:/android-sdk/extras/google/m2repository/com/android/support/support-v4/23.2.0/support-v4-23.2.0.pom
         file:/android-sdk/extras/google/m2repository/com/android/support/support-v4/23.2.0/support-v4-23.2.0.jar
     Required by:
         :project:unspecified > com.facebook.android:facebook-android-sdk:4.10.1
   > Could not find com.android.support:cardview-v7:23.2.0.
     Searched in the following locations:
         https://repo1.maven.org/maven2/com/android/support/cardview-v7/23.2.0/cardview-v7-23.2.0.pom
         https://repo1.maven.org/maven2/com/android/support/cardview-v7/23.2.0/cardview-v7-23.2.0.jar
         file:/android-sdk/extras/android/m2repository/com/android/support/cardview-v7/23.2.0/cardview-v7-23.2.0.pom
         file:/android-sdk/extras/android/m2repository/com/android/support/cardview-v7/23.2.0/cardview-v7-23.2.0.jar
         file:/android-sdk/extras/google/m2repository/com/android/support/cardview-v7/23.2.0/cardview-v7-23.2.0.pom
         file:/android-sdk/extras/google/m2repository/com/android/support/cardview-v7/23.2.0/cardview-v7-23.2.0.jar
     Required by:
         :project:unspecified > com.facebook.android:facebook-android-sdk:4.10.1

这在他们的这个存储库的问题列表中描述(22天前开放),并提供解释他们的修复(2天前)的拉取请求. …